Drones sank two merchant ships and set a third on fire in the Black Sea economic zones of NATO members Romania and Bulgaria on 5 and 6 October, killing at least two seafarers, Romanian and Bulgarian authorities reported. Ukraine blamed Russia for the first attack. Neither Bucharest nor Sofia has said who launched the drones.

Russia has spent months striking ships bound to and from Ukrainian ports while denying responsibility or staying silent. Now merchant vessels are sinking inside NATO members' economic zones without either government naming the attacker, so Moscow pays no political price for hitting allied waters.

Grain ship sinks off Romania

The Royad Mammadov, a Turkish-owned ship carrying grain from Ukraine's port of Izmail to Italy, sank on 5 October near Romania's Pescăruș offshore platform, 20 nautical miles from the Romanian coast, Digi24 reported. The Romanian Naval Authority described the incident as a fire on board. Romania's Interior Ministry said 11 crew members were rescued and two people died.

Three injured sailors aged 22 to 50 were taken to the Constanța county hospital, conscious and stable, with multiple injuries. Adrian Mihălcioiu, the leader of Romania's Free Seafarers' Union, said the ship was attacked by Russian sea and aerial drones in waters Romanians consider safe.

"It is a commercial ship, a ship that is not part of the war… people who have nothing to do with the war, it is not their war," he said.

Ukrainian President Volodymyr Zelenskyy blamed the attack on "two Russian drones" and said the ship was in neutral waters carrying corn. Citizens of Azerbaijan and India were on board, and the captain was killed, he said. Romanian authorities have not attributed the sinking to Russia.

Two more ships hit in Bulgaria's zone

A day later, drones struck two merchant ships in Bulgaria's exclusive economic zone east of the town of Byala, the first known attack on ships there, Maritime.bg reported. The Togo-flagged Alfa Watan, sailing from Al-Arish, Egypt, to Sulina, Romania, suffered critical hull damage and sank, Militarnyi said. The Bulgarian ferry Dioscuria found only an overturned lifeboat and life jackets at the scene, and the search for the crew continues, Euronews reported.

The Palau-flagged Able, sailing from Galați, Romania, to Istanbul, caught fire, and the Dioscuria rescued its 18 crew members. Both ships are Turkish-owned, Türkiye Today reported. Two sailors with severe injuries were flown to a hospital in Varna, Prime Minister Rumen Radev said, according to AP. Sea and aerial drones hit the ships at about 3 a.m., he said, calling the attack "a blatant violation of international law and maritime law."

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Radev called an emergency meeting of four ministries, the presidency, and the security services. No one from the Alfa Watan has been found, he said, warning that if the war is not ended in time, it "will continue to expand its spatial scope." The origin of the drones is still being clarified, Maritime.bg said. Several Bulgarian media outlets cited sources as saying the drones were Russian, Sofia Globe reported.

Russia's war on Black Sea shipping

Russia had already killed the captain of a Tanzanian-flagged ship in September, and days later it struck another civilian vessel, killing its captain too. Ukraine says that route carries 90% of its farm exports.

Romania has destroyed a sea drone near its Neptun Deep gas project and found Russian drones floating in its economic zone. In September, ISW linked drone crashes in Romania and Moldova to a wider Russian pattern of pressure on NATO.

EU foreign policy chief Kaja Kallas called for a moratorium on Black Sea attacks. Turkish President Recep Tayyip Erdoğan said Ankara was stepping up diplomacy to restore grain exports. Türkiye and the UN are organizing new Black Sea truce talks between Russia and Ukraine, Bloomberg reported, citing a diplomat. Russia earlier dismissed Kyiv's offer of a Black Sea ceasefire.

Russian FPV drones hit three ambulances and, separately, a residential high-rise in Kramatorsk late on 5 October, the Donetsk Oblast Prosecutor's Office said. The strike on the high-rise killed a woman and injured another, and three medical workers were wounded trying to save their vehicles. Prosecutors have opened war-crimes investigations.

Russian drones attack Ukrainian civilians every day, and Ukraine's UN envoy has cited "human safari" and repeat strikes on medics as grounds to strip Moscow of its Security Council seat. Kherson, Nikopol, and Kramatorsk are all cities where drone operators pick civilian targets in real time.

Drones aimed at ambulances

Between 22:00 and 22:25, the Russian army deliberately directed two FPV drones at ambulances parked on a Kramatorsk street, prosecutors said. Three workers of the ambulance service were injured while trying to save the vehicles after the first hit. They suffered blast injuries, shrapnel wounds to the body and limbs, burns, and concussions, and received medical care. Three ambulances were damaged.

FPV drones are flown by an operator watching a live camera feed until the moment of impact. Prosecutors called the strike targeted.

A woman killed at home

At 22:10, a Russian drone hit a residential high-rise in the city. A 49-year-old woman was killed. Another resident, a 68-year-old woman, suffered a broken foot, shrapnel wounds to the body and limbs, and a concussion, according to prosecutors. The Kramatorsk district prosecutor's office has opened criminal proceedings over war crimes.

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Across Donetsk Oblast, Russian attacks killed three people on 5 October, in Sloviansk, Druzhkivka, and Sukhanivka, and injured 11, Donetsk Oblast head Vadym Filashkin said. His morning tally, posted before the prosecutors' report, did not include the Kramatorsk death.

Kramatorsk under the drone hunt

Russian drone operators have hunted people in Kramatorsk for months. In June, a Russian pilot chose to kill a man he saw on a city street. Russia strikes the city daily, and in August it dropped eight FAB-250 bombs on Kramatorsk, killing one person and injuring 18.

The same drone hunting of civilians has run for years in Kherson, where Ukraine's Security Service has named 10 Russian servicemen it ties to the "human safari." A UN inquiry has traced the Kherson campaign up the chain of command. In April, ISW found Russians using such tactics across southern Ukraine, including in Nikopol.

Medics have been repeated targets. In March, a Russian FPV drone killed two medics in an ambulance in Kharkiv Oblast, and in February, Russian drones hit an ambulance and a shop there, killing three. In Kyiv, a Russian missile attack damaged a maternity hospital in September.

Drones attacked Moscow and Moscow Oblast overnight on 6 October, and a fire broke out at the Volodarskaya pipeline station, the region's largest oil depot, monitoring Telegram channels reported. The station supplies jet fuel to Moscow's main airports. Local authorities did not mention the fire, while claiming to have downed hundreds of drones.

Ukraine's long-range drones have spent years working through Russia's oil industry, and Kyiv says its strikes have now disabled more than half of Russia's refining capacity. The storage and pipeline hubs that move the remaining fuel are what keep the army, the capital, and the export flows supplied.

Fire at the Moscow region's largest fuel depot

Ukrainian monitoring channel Exilenova+ wrote that the Volodarskaya station was burning after the attack, and Ukrainian monitoring channel Supernova+ reported the strike on the depot. Exilenova+ then posted the site's coordinates near the village of Konstantinovo. Supernova+ said a storage tank was on fire, and Exilenova+, citing locals, later wrote that two tanks were burning.

Russian news Telegram channel Astra geolocated a Supernova+ video to Konstantinovo in Ramensky district. The station had not been reported attacked before, Astra said.

The station lies 40 km from central Moscow, Militarnyi reported. Drone alerts in the area began at 23:43 on 5 October. From 03:24, reports came in of Ukrainian Peklo drones flying through Oryol Oblast toward Moscow Oblast, the outlet said. Ukraine's military has not commented on the strike.

Early in the night, Exilenova+ claimed a strike on the Moscow refinery in Kapotnya. It later said the footage circulating from there was most likely archival.

Jet fuel for Vnukovo, Domodedovo, and Sheremetyevo

The station has 27 tanks with a combined capacity of about 250,000 m³, according to Militarnyi. It connects to the ring pipeline for petroleum products around Moscow, which carries aviation fuel to Vnukovo, Domodedovo, and Sheremetyevo airports. Russia's state pipeline operator Transneft has said the station can move up to 3 million tonnes of jet fuel, 2.8 million tonnes of diesel, and 1.6 million tonnes of gasoline a year.

Astra gave a lower figure: about 3 million tonnes of petroleum products a year in total, arriving from the Moscow and Ryazan refineries. Supernova+ described Volodarskaya as a branch of Transneft–Upper Volga, as did Militarnyi, while Astra named Transnefteprodukt.

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Russia claims hundreds of drones downed

Moscow Mayor Sergei Sobyanin claimed that 650 drones flew toward the Moscow region from the evening of 5 October to the morning of 6 October. Most were downed far from the city, and 105 near Moscow, he claimed, without mentioning any damage. Adding up his later posts, Astra counted at least 718 drones aimed at Moscow. Moscow Oblast Governor Andrei Vorobyov claimed that 185 drones were downed over 16 municipalities. He later called it one of the largest drone attacks and put the toll at two killed and nine injured, with 47 detached houses damaged in seven municipalities.

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Not the first Transneft site or Moscow fuel target

Ukraine has targeted Russia's pipeline network before. On 2 October, drones set Transneft's Samara station on fire. During Russia's Duma elections on 20 September, a strike reached Moscow's fuel supply. The Moscow refinery fully stopped processing oil after that attack. Days later, Kyiv offered to halt refinery strikes if Russia stopped hitting Ukraine's power grid. Russia has not taken the deal.