The world demands the truth. International response to Russia’s brutality is growing stronger, as the Netherlands and 40 other OSCE countries initiate an independent investigation into the torture of Ukrainian prisoners of war.
Russia holds an estimated 8,000 Ukrainian soldiers in captivity. Additionally, around 60,000 Ukrainians are considered missing, many of whom may also be detained in Russian prisons. Over 90% Ukrainian prisoners who return from captivity say Russian guards beat, torture them with different tools, such as electric shock devices. They are deprived of food, water, sleeping conditions, and forced to sing Russian national anthems.
The Moscow Mechanism launches a mission for truth
The investigation will be conducted under the OSCE’s Moscow Mechanism.
This mechanism a special formal procedure that allows OSCE participating states to establish short-term international expert missions to investigate human rights violations and humanitarian consequences in a specific region.
Systematic crimes of Russia will be documented
Since the start of Russia’s all-out war, this mechanism has been used to document war crimes, the deportation of children, torture of civilians, and widespread human rights violations, reports Ukraine’s Coordination Headquarters for the Treatment of Prisoners of War.
The new investigation will establish facts regarding the torture of Ukrainian POWs, and this evidence will become the basis for convictions in Ukrainian courts, the International Criminal Court, and a tribunal on the crime of aggression against Ukraine.
“The Netherlands and its partner countries are working to uncover the truth and ensure accountability for Russia’s war crimes in Ukraine,” says Dutch Foreign Minister Kaspar Veldkamp.
As noted by Ukraine’s Coordination Headquarters for the Treatment of Prisoners of War, this process is critical to ensuring that no act of cruelty goes unpunished.
Previously, a special OSCE monitoring mission operated in Ukraine to observe the situation during Russia’s 2014 invasion of Donbas. In mid-2022, Moscow blocked the extension of the SMM’s mandate, and the mission ceased operations.
Since then, the OSCE has continued to support Ukraine through other programs, including an extra-budgetary assistance initiative, though without a direct monitoring presence in active combat zones.
You could close this page. Or you could join our community and help us produce more materials like this.
We keep our reporting open and accessible to everyone because we believe in the power of free information. This is why our small, cost-effective team depends on the support of readers like you to bring deliver timely news, quality analysis, and on-the-ground reports about Russia's war against Ukraine and Ukraine's struggle to build a democratic society.
Become a patron or see other ways to support.
He looks just like an ordinary man who shares on social media how he loves and adores his “wifey” and two kids, takes pride in his medical career and celebrates national holidays.
However, this 34-year-old Russian man has a dark secret.
Ukrainian prisoners of war (POWs) know him as “Doctor Evil” — a medical professional who systematically shocked them witsh stun guns instead of treating their injuries. Who forced them to bark like dogs. Who refused medical care to dying prisoners.
Social media helps identify Doctor Evil
An investigation by Schemes, the investigative unit of Radio Free Europe/Radio Liberty, traced the identity of Doctor Evil through meticulous research, while Organised Crime and Corruption Reporting Project translated it into English.
Reporters obtained a list of 177 Ukrainian POWs who had been held at Colony No. 10 from Ukrainian law enforcement sources. Many of them were captured during the siege of Mariupol in 2022 and sent deep into Russia.
Mordovia is a forested region in central Russia known for its extensive network of prisons and detention centers, a legacy of the Soviet gulag system that has made it synonymous with harsh incarceration conditions.
Ukrainian prisoners of war before and after captivity at Russian Colony No. 10, displaying the physical toll of systematic torture and medical neglect described in their testimonies about Russian “Doctor Evil” Ilya Sorokin. Image: Organised Crime and Corruption Reporting Project (OCCRP)
But how do you identify someone when the doctor usually wore masks and prisoners often had bags over their heads? The investigators faced a significant challenge: identifying someone based primarily on voice and behavior, with only brief glimpses of his face.
The breakthrough came from social media. Medical services for Colony No. 10 come from one unit: Medical-Sanitary Unit No. 13. Schemes found their VKontakte [Russian version of Facebook] pages filled with photos from award ceremonies and videos of doctors singing at workplace parties, their faces clearly visible.
As soon as former POW Pavlo Afisov heard the voice in one of the video clips, he started calling reporters before they’d even finished watching, his voice shaking with recognition. “That’s him.” The voice that had haunted him for months—manic, screechy, “indescribable” as prisoners called it—was unmistakable. Another, Yulian Pylypey, cropped a photo and circled a blonde man in a white coat. “The psychopath is the one on the left.”
All fifty former prisoners who agreed to speak identified the same person: Ilya Sorokin, the man they knew as “Doctor Evil.”
lllya Sorokin, nicknamed “Doctor Evil” by Ukrainian prisoners of war, is a 34-year-old Russian prison doctor who systematically tortured Ukrainian POWs with electric shocks and psychological abuse instead of providing medical care at Colony No. 10 in Mordovia. Photo: Radio Liberty Ukraine
Human rights organizations document that up to 90% of returned Ukrainian prisoners experienced torture during detention. Methods include beatings, electric shocks, mock executions, waterboarding, prolonged stress positions, starvation, denial of medical care, sexual violence, and psychological torture.
“Worse than beatings”: the psychological torture that cut deepest
Prisoners described how Sorokin forced them to perform degrading acts. He made prisoners crawl across the floor and bark like dogs, according to multiple testimonies. One Ukrainian prisoner became known for his barking ability and received special attention that revealed the doctor’s psychological sadism.
“Every time someone passed by, he had to bark. God forbid he didn’t. The doctor would immediately shout: ‘You, bark!'” recalled Yulian Pylypey, who spent 171 days in the colony.
The degradation followed carefully crafted patterns designed to strip away human dignity. Prisoners were forced to mimic roosters: “Cock-a-doodle-doo, guys, cock-a-doodle-doo!” They had to answer commercial jingles like trained animals responding to cues.
“He would shout ‘Yogurt!’ and we would have to shout ‘Danone!'” said Pavlo Afisov, who endured 614 days of this treatment. “Pepsi!” would be met with “Pshhhhh!” and “Who lives under the sea?” required the response “Spongebob SquarePants!”
Why children’s cartoons and advertisements? Former prisoners realized the randomness was precisely the point and that the absurdity amplified the humiliation.
But the most psychologically devastating question came repeatedly, designed to attack their very identity: “His favorite question for all of us was, ‘Who are you?’ We had to reply, ‘Faggots,'” Afisov recalled.
This wasn’t interrogation or even punishment for specific infractions. Former prisoners described recognizing something far more disturbing—pure cruelty without purpose.
“You could see he was a psychopath,” said Nikita Pikulyk, who spent 336 days in the colony. “He got pleasure from this. Normal people, even cruel ones, usually have a reason. But with him, the cruelty was the reason.”
The psychological torture revealed a mind that found satisfaction in the systematic destruction of human dignity, making prisoners understand they were dealing with someone who tortured not because he had to, but because he wanted to.
Sorokin demanded prisoners shout “Glory to Russian medicine!” If they refused, consequences followed. “Best case, you get shocked a few times by the doctor,” said Pylypey. “In the worst cases, special forces would be called into the cell to ‘educate’ the prisoners.”
“Screaming nonsense, reciting poems or songs—to me, it was one of the most degrading things. Honestly, I would rather be hit with a baton 10 times than do that,” Pylypey shared.
Sorokin seemed to understand this. “He gets aesthetic pleasure from the fact that you stand before him on all fours, your hands raised, eyes closed, you have nothing,” Afisov testified.
Explore further
United24: Ukrainian soldier tells how Russian surgeon burnt Glory to Russia on his body while in captivity
Pills replaced by electric shocks
Doctor Evil used his medical position to gain access to prisoners, then administered electric shocks instead of treatment. When prisoners requested medical help, he would order them to extend their hands through cell windows.
“Hand, bitch!” prisoners recalled him shouting. Instead of receiving pills, their outstretched hands would be shocked with a stun gun.
“Now I’ll experiment,” Pylypey remembered Sorokin saying before turning the stun gun to “maximum.”
One former POW Oleksandr Kiriienko described the pattern: “Whoever turned to him, he always carried a stun gun. Yes, the door would open, and whoever had asked for him — he’d hit them with the stun gun and say, ‘Will you ask for a pill again?’ Of course, the answer was ‘no.'”
Former Ukrainian POW Oleksandr Kiriienko before and after Russian captivity. Photo: Radio Liberty Ukraine
Sorokin’s denial of medical care extended to life-threatening situations. Prisoners reported being refused basic medical supplies and pain relief for serious conditions.
One prisoner with a rotting tooth that caused “agonizing pain” was denied painkillers, according to testimony.
Another case involved Volodymyr Yykhymenko, who died at the prison. His cellmate, Valentyn Poliansky, told investigators that prisoners asked Sorokin to examine Yykhymenko’s bleeding, swollen ear before his death, but the doctor refused.
“You could absolutely never approach Dr. Evil. He didn’t treat anyone,” Afisov stated.
Deaths in Russian captivity are not rare. Four Ukrainian servicemen died at Colony No. 10—two in 2023, two in 2024. Official causes: pneumonia, exhaustion, malnutrition.
However, former prisoners provided starker details: “My cellmate died in front of me—from dystrophy. He died because his legs were badly rotting and there were heart complaints.”
Another wrote to journalists: “Through systematic torture he died before my eyes.”
Russians turn service dogs into torture tools
The colony staff found new ways to terrorize prisoners as months passed. Service dogs, meant for security, became instruments of torture—with Doctor Evil often present to watch the violence unfold.
During what should have been a routine morning inspection, guards forced prisoners to crawl out of their cells on hands and knees. At that moment, staff released a service dog without a leash or muzzle.
“The dog reacted to sharp movements, and since we were crawling, it tried to grab everyone, bite, switched from one to another. It mostly bit hands and legs,” recalled Nikita Pikulyk. “Because of this, the guys had very terrible injuries—wounds that rot and in such conditions will never heal on their own.”
The attacks followed a sadistic ritual. Pavlo Afisov described how guards would position prisoners on all fours while the dog circled them, sniffing. “The dog begins, while you stand on all fours, sniffing you—legs, butt and so on. And then the doctor just tells it the phrase: ‘Try.’ ‘Try carefully or try as you like.'”
The targeting was deliberate and cruel. “One time I felt this on myself. The dog approached, sniffed, chose a place for itself and bit my buttock,” Afisov recalled. “Someone was bitten, I heard, in the balls. Some were bitten to blood.”
Guards controlled the violence like a twisted game, giving commands that turned medical examinations into torture sessions. The psychological impact matched the physical wounds—prisoners never knew when the next “inspection” would bring teeth instead of routine checks.
“I love my wifey” – the torturer next door
So who is Ilya Sorokin, aka Doctor Evil, when he’s not torturing prisoners? Schemes found years of social media posts. A 34-year-old from Potma village. Married with two daughters. Salary: 680,000 rubles ($8600) annually by 2021.
His posts show a typical provincial Russian. Sorokin participated in May 9 military parades wearing Soviet-era uniforms, visited the Crimean Bridge shortly after its opening in 2018, and posted messages supporting Russia’s military with Z-symbolism.
Ilya Sorokin and two of his colleagues celebrating Victory Day on 9 May, wearing St. George’s ribbons. Photo: Radio Liberty Ukraine
Professional pride also runs through his online presence. He celebrates Medical Worker Day. Posts comedy skits with nurses. Receives awards as “best paramedic” for “conscientious fulfillment of civic duties.”
This ordinariness reflects what philosopher Hannah Arendt called “the banality of evil” in her study of Nazi official Adolf Eichmann — how perpetrators of systematic atrocities often appear as “terrifyingly normal” bureaucrats rather than obvious fanatics.
Sorokin fits perfectly. An enthusiastic joiner of committees and trade unions. Amateur performer at workplace parties. Devoted family man “I love and adore my wifey!” he writes on his Vkontake page.
Who becomes a torturer? Sometimes, just ordinary people given permission.
Ilya Sorokin (last on the right) and his colleagues celebrate Medical Worker Day. Photo: Radio Liberty Ukraine
Sorokin denies accusations
When Schemes reporters contacted Sorokin directly, the conversation lasted only moments.
“Ukrainian servicemen returning from captivity in Russia, who were held at Penal Colony No. 10, identify you as the person who tortured and beat them,” the journalist stated.
“That can’t be true. I don’t work there,” Sorokin replied before hanging up. He blocked the number after two additional contact attempts.
The Federal Penitentiary Service and Colony No. 10 administration did not respond to requests for comment.
Orders from above: systematic cruelty in Russian prisons
The reporters found that the abuse at Colony No. 10 was not the result of individual initiative but part of coordinated policy. Former prisoners reported that guards explicitly stated they were following orders.
“This is all from their initiative. The ‘guards’ said this repeatedly. Like, we didn’t invent the regime. But it’s an instruction,” one prisoner testified.
Earlier, The Wall Street Journal also reported that elite prison guards received orders that “normal rules” would not apply to Ukrainian prisoners of war, with these guards then circulated to prisons across Russia.
Russian prisons were known for harsh conditions and abuse of their own citizens even before 2022. However, the systematic torture of Ukrainian prisoners of war represents an escalation of these practices under official sanction.
As prisoner rights advocate Olga Romanova noted, prison doctors in Russia become “Federal Penitentiary Service of Russia (FSIN) staff first, and doctors second,” reporting to military rather than medical leadership. This structure enabled medical professionals like Sorokin to abandon their healing mission in favor of systematic torture.
The case of “Doctor Evil” demonstrates how ordinary individuals can become instruments of state-sponsored war crimes when institutional structures provide both permission and protection for such behavior.
Not surprisingly, Sorokin recently joined the Russian army as a company medical instructor. His call sign? “Doctor.” Without the “evil” part.
However, his old job waits for him when the war ends.
Ilya Sorokin (in the center) in the military uniform stands near his colleagues as he joins the Russian army. Photo: Radio Liberty Ukraine
How many more “ordinary” people are committing war crimes while planning their return to normal life? The investigation into Colony No. 10 suggests this case isn’t unique—it’s systematic.
Healing after hell: Ukraine opens mental facility for torture survivors
The scale of documented abuse led Ukraine to establish its first mental health facility dedicated specifically to released POWs and torture survivors.
The Saint Leo the Great Mental Health Center opened in Lviv on 24 June, designed to serve approximately 1,000 patients annually. The facility includes 30 beds, individual and group therapy spaces, and art therapy workshops. Patient rooms resemble residential spaces rather than hospital environments—a deliberate choice for people who’ve endured institutional abuse.
The center targets individuals returning from captivity, those recovering from losses, and people managing trauma from wartime experiences. For survivors like those from Colony No. 10, healing means confronting not just physical wounds but the systematic degradation designed to destroy their humanity.
Some carry permanent reminders. Others, like the former prisoners who spoke to Schemes, work to expose their tormentors. All face the long process of rebuilding their psychological health after systematic efforts to break their spirits.
You could close this page. Or you could join our community and help us produce more materials like this.
We keep our reporting open and accessible to everyone because we believe in the power of free information. This is why our small, cost-effective team depends on the support of readers like you to bring deliver timely news, quality analysis, and on-the-ground reports about Russia's war against Ukraine and Ukraine's struggle to build a democratic society.
Become a patron or see other ways to support.
Schemy, a project of Radio Free Europe/Radio Liberty, has identified a Russian prison medic responsible for crimes against Ukrainian soldiers held at Penal Colony No. 10 in Mordovia. His cruelty was so extreme that Ukrainian prisoners nicknamed him “Dr. Evil.”
Ukrainian prisoners of war (POWs) are systematically tortured in Russian captivity and denied medical care. More than 95% of released Ukrainian POWs report experiencing torture, including beatings, electrocution, sexual violence, and psychological abuse.
Journalists have gathered testimonies from more than 150 former captives who recognized “Dr. Evil” in photos and videos. He turned out to be 34-year-old Illia Sorokin, a father of two and employee at Medical Unit No. 13 of Russia’s Federal Penitentiary Service (FSVP). He had previously listed his workplace publicly on social media, visited occupied Crimea, and participated in 9 May parades wearing Soviet uniforms with a St. George ribbon.
Pavlo Afisov, a Ukrainian marine from the 36th Brigade, said that Sorokin used a stun gun, forced Ukrainian prisoners to crawl, jump, and sing Russian songs.
“He derived aesthetic pleasure from seeing you bent over in front of him, hands raised, with nothing on you, eyes closed. Yet he would kick you between the legs, hit you in the gut, strike your liver, beat you with a rubber baton and a stun gun. He even said that people like us deserve genocide,” the soldier recalled.
Another soldier, Oleksandr Savov, confirmed the abuse and the denial of medical care. Sorokin was approached concerning the mental health of Ukrainian prisoner, Volodymyr Yukhymenko, who was brutally beaten and later died. A Ukrainian forensic examination found multiple fractures, hemorrhages, and pneumonia.
Despite Sorokin’s denials of responsibility, Tetiana Zhuravliova, a personnel officer at Medical Unit No. 13, confirmed his involvement. She said that Sorokin is currently serving in the Russian army, using the callsign “Doctor” and collecting supplies, equipment, medicine, and camouflage nets for his unit.
You could close this page. Or you could join our community and help us produce more materials like this.
We keep our reporting open and accessible to everyone because we believe in the power of free information. This is why our small, cost-effective team depends on the support of readers like you to bring deliver timely news, quality analysis, and on-the-ground reports about Russia's war against Ukraine and Ukraine's struggle to build a democratic society.
Become a patron or see other ways to support.
The court found that Defense Secretary Lloyd J. Austin III had the authority to invalidate a contract reached between the accused mastermind and a Pentagon official.
Less than a month after his release from Russian captivity, 57-year-old soldier Valery Zelensky died of injuries sustained under torture, Ukrainian media outlet Suspilne reported on July 6.
Zelensky had spent 39 months in Russian captivity. He was released as part of the landmark 1,000-for-1,000 prisoner deal on May 25. Just 22 days later, on June 16, his heart stopped.
At the beginning of the full-scale invasion, his unit delivered weapons to Ukrainian forces in Mariupol, his daughter, Valeria Zelenka, said.
"When the offensive began, they were told that volunteers were needed to go on the assault. Out of 40 (people), eight said, 'We're going.' My father was one of them," she added.
The family did not immediately find out that he had been taken prisoner for some time, and he was considered missing in action. During his years in captivity, Zelensky's family received only one letter. He had long appeared on prisoner exchange lists but did not return until this year.
"The torture was not just cruel, it was inhuman. But he endured it," his daughter told Suspilne.
"He told me, 'Daughter, I endured it because of Kyokushin (a style of karate). I have discipline, I'm tough. My body and muscles protected me.'"
Valeria said her father had been overjoyed to come home and meet his grandson for the first time. He also expressed a desire to learn Ukrainian after years of speaking Russian.
Doctors initially treated him for suspected pancreatic issues, but his condition quickly deteriorated. During surgery, they discovered his organs were severely damaged. He died in intensive care days later.
"My father told me, 'Three people died among us from torture. And when I was in a very bad state, I asked God: Please let me see the eyes of my beloved,'" his daughter said.
A medical report listed extensive injuries. He had a non-functioning shoulder and arm and showed signs of multiple organ failures.
"The first feeling is inexhaustible pain that your loved one is no longer here. He was simply tortured," Valeria said. "And there is relief that he no longer feels that torture."
Zelensky's return was part of a wider prisoner exchange agreed during a first round of direct talks between Ukrainian and Russian delegations in Istanbul.
The case is the latest in a number of Ukrainian soldiers' deaths after their return from Russian captivity, highlighting the effects of "widespread and systematic" torture of prisoners of war (POWs) in Russian prisons, reported by the U.N.
Serhii Dobrovolskyi, a Ukrainian soldier who had been in Russian captivity since 2023, died just a month after his release at the end of May as part of a 1000-for-1000 prisoner swap, an official from the soldier's home region announced on June 21.
In 2023, a high-ranking officer from the "Azov" brigade, Oleh Mudrak, died at 35 years old, months after his release from Russian captivity.
As a POW, he survived the Olenivka camp explosion and endured a dramatic weight loss in just 100 days, as seen in the photos published by Stanislav Aseyev, a Ukrainian writer and activist.
Dmytro Shapovalov, a 32-year-old defender of Ukraine who was exchanged in 2023 after over a year in Russian prisons, died on June 9, according to Suspilne.
Ukrainian prisoners of war (POWs) held in Russian captivity often face torture, abuse, and inhumane treatment, according to Ukrainian officials and human rights groups.
Many former POWs have reported beatings, starvation, and psychological pressure.
The exact number of Ukrainians currently held by Russia remains unknown. Kyiv continues to call for a full all-for-all exchange. Moscow has repeatedly rejected the offer.
Serhii Dobrovolskyi, a Ukrainian soldier who had been in Russian captivity since 2023, has died just a month after his release at the end of May as part of a 1000-for-1000 prisoner swap, an official from the soldier's home region announced on June 21.
The case is the latest in a chain of Ukrainian soldiers' unexpected deaths after their return from Russian captivity, highlighting the effects of "widespread and systematic" torture of prisoners of war (POWs) in Russian prisons, reported by the U.N.
"Serhii Dobrovolskyi was released from captivity at the end of May this year. A few days ago, he was met by his fellow townspeople in his hometown," wrote the head of the soldier's native Zdolbuniv district in Rivne Oblast, Vladyslav Sukhliak, on Facebook. The exact cause of death was not immediately announced.
A video posted by the Zdolbuniv city council on June 17 shows Dobrovolskyi being greeted in Zdolbuniv by a crowd chanting the Ukrainian anthem as the soldier is hugging his mother. He was also presented with a korovai, a round bread loaf, as part of the symbolic Ukrainian tradition of welcome with bread and salt.
"Finally, after almost two years, the mother hugged her son," the Zdolbuniv city council commented on the video.
Sukhliak added that Dobrovolskyi was 43 years old at the time of death. "The war with the damned (Russian) occupiers takes lives and health of the defenders," he wrote.
Earlier in June, another Ukrainian soldier returned from Russian captivity had died unexpectedly.
Dmytro Shapovalov, a 32-year-old defender of Ukraine who was exchanged in 2023 after over a year in Russian prisons, had died on June 9, according to the Ukrainian public broadcaster Suspilne.
His sister Anastasiia said that Shapovalov endured torture, hunger, and psychological pressure in captivity. After his release, Shapovalov returned to military service. He died in his sleep, presumably from heart failure, Suspilne reports.
After his death, a representative of the Coordination Headquarters managing the prisoner swaps, Yuliia Pavliuk, published a video showing Shapovalov eating an apple on the day of his release.
"I had just been dreaming about an apple for a year," Shapovalov says in the video.
In 2023, a high-ranking officer from the "Azov" brigade, Oleh Mudrak, died at 35 years old, months after his release from Russian captivity. As a POW, he survived the Olenivka camp explosion and endured a dramatic weight loss in just 100 days, as seen in the photos published by Stanislav Aseyev, a Ukrainian writer and activist.
Treatment of "Azov" fighters in Russian prisons is notoriously brutal due to their nationalistic values and Russian propaganda that worked for years to smear the unit's reputation both in Russia and internationally.
Some Azov fighters died from torture in Russian captivity or were sentenced to decades in prison for alleged war crimes. Many of them were among the 54 Ukrainian prisoners killed in an explosion in Olenivka penal colony in the Russian-occupied part of Donetsk Oblast on July 28, 2022.
Ukraine accused Russia of orchestrating the explosion, while Russia has been systematically preventing international organizations from conducting an independent investigation on the site of the attack.
The U.N. reported widespread torture of Ukrainian POWs in Russia and brutal conditions of their detention over the past years.