Ukraine's Defense Intelligence, also known as HUR, has given Japan's parliament speaker a rare, close look at a North Korean weapon: the components of a ballistic missile Russia fired at Ukraine. Ukrainian officers have shown the parts to Eisuke Mori, speaker of Japan's House of Representatives, during his delegation's visit to Kyiv, HUR says on social media.

Ukraine has become the place where North Korea's missiles are tested in combat and taken apart. Pyongyang has supplied Russia with roughly 150 KN-23 and KN-24 ballistic missiles since late 2023, along with thousands of troops, and Russia has fired scores of them at Ukrainian cities.

Each strike gives Pyongyang combat data that has sharpened its weapons. Showing Japan the components turns that access into a prospect of future deterrence: the same missiles threaten the Asia-Pacific.

Ukraine hands Japan the evidence

Examining missile parts allows analysts to read the missile's technical characteristics, design, and the state of North Korea's arms industry, HUR says. Ukraine has found that the North Korean missiles falling on its cities are built partly from foreign parts, with components traced to companies in Britain, Japan, Switzerland, China, and the US, Radio Free Asia reports, evidence of how Pyongyang skirts sanctions to build them.

The threat reaches the Pacific

HUR frames the demonstration as a shared-security case. North Korean weapons endanger not only Ukraine but Japan and the wider Asia-Pacific, it says, while the Moscow-Pyongyang partnership lets Russia keep waging its war and lets Pyongyang build up its arsenal and refine its weapons.

"Countering this cooperation requires coordinated action by international partners. Sharing intelligence helps better assess common threats and find ways to overcome them," HUR states.

Pyongyang learns from the strikes

North Korea has sent Russia millions of artillery shells, rocket systems, and thousands of troops, and is paid in cash and technology, with one analyst estimating Pyongyang may have earned about $20 billion from the war. In return, the missiles' accuracy has improved as Pyongyang studies how they perform under fire, turning the war into a live proving ground for weapons built to threaten its neighbors.

Russia has begun using large numbers of a missile originally designed as a training target for air-defense crews, despite the weapon being significantly less accurate than the ballistic missiles Russia normally uses for precision strikes. The RM48U is now being launched against targets in Ukraine from S-400 air-defense systems.

The development comes as Russia has sharply increased its use of ballistic missiles against Ukrainian cities in recent months, while Ukraine faces a critical shortage of the interceptors needed to defend against them. Russian forces had more than tripled their monthly ballistic missile launches between April and July, according to Ukrainian military intelligence, as Ukraine's stocks of Patriot interceptors have dwindled.

More than half of the 228 ballistic and hypersonic missiles Russia launched in July and the first eight days of August were RM48Us, according to Ukrainian data reviewed by Reuters in an investigation published on 18 September.

A training missile turned into an inaccurate weapon

The RM48U was originally developed as a training target to help Russian air-defense crews practice intercepting incoming threats. It was not designed as a precision ground-attack missile.

Ukrainian investigators told Reuters that the missile is less powerful and less accurate than the Iskander, Russia's main short-range ballistic missile. They estimate that RM48Us deviate from their intended targets by around 300 meters on average.

The missiles nevertheless follow a high-speed ballistic trajectory when used in combat, making them difficult for Ukrainian air defenses to intercept.

Russia launches the RM48U from S-400 systems, repurposing part of its air-defense arsenal for offensive strikes.

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Ukraine strikes two Russian S-400 launchers in Bryansk. The same systems were used to attack Kyiv overnight.

Russia is using inaccurate missiles at scale

The number of RM48U launches increased sharply during the summer.

Russia launched 158 ballistic and hypersonic missiles against Ukraine in July, according to Ukrainian data reviewed by Reuters. Of those, 87 were RM48Us.

Russia then launched another 36 RM48Us among 70 ballistic and hypersonic missiles fired during the first eight days of August.

July was the highest month for Russian ballistic and hypersonic missile launches since the start of the full-scale invasion, according to the Ukrainian data.

The surge in RM48U use also coincided with a major decline in Russia's use of Iskanders. Russia launched more than 100 Iskanders in June but only 38 in July.

The shift indicates that Russia is using the less capable RM48U to sustain its ballistic missile campaign to continue causing indiscriminate destruction in Ukrainian cities while conserving more capable weapons.

RUSI analyst Sidharth Kaushal told Reuters that this allows Russia to preserve missiles such as Iskanders, as well as other more advanced weapons, for future attacks.

Less accurate does not mean less dangerous

The RM48U's poor accuracy has already had deadly consequences.

Ukrainian investigators concluded that an RM48U struck a railway platform in the Brovary district of Kyiv Oblast on 5 August, killing eight people. 

According to Ukrainian prosecutors cited by Reuters, the missile's warhead also scatters metal fragments over a wide area.

The attack illustrates the danger of Russia using a weapon that was never designed for precision strikes in populated areas. Even when the missile misses its intended target, its large deviation can leave civilians and civilian infrastructure within the affected area.

Russia denies deliberately targeting civilians and says it strikes military and other strategic targets.

Russia plans to produce more

Ukraine's military intelligence told Reuters that Russia plans to produce 480 RM48U missiles in 2026, more than twice the 200 produced last year.

That would give Russia a growing supply of a relatively simple ballistic weapon that can be used alongside its more sophisticated missiles.

The large-scale deployment of the RM48U represents a new development in Russia's ballistic campaign: a missile built to serve as a training target for air-defense crews is now being used as an offensive weapon against Ukraine.

At a time when Ukraine is struggling to replenish the scarce interceptors needed to stop Russia’s ballistic missiles, Moscow is expanding the range of weapons it can use to strike Ukrainian cities, killing more civilians and destroying more civilian infrastructure with each escalation.

Russia launched a large-scale missile and drone attack on Ukraine overnight on 17 September, striking Kyiv, Zaporizhzhia, and Odesa Oblast, among other regions.

The attack damaged civilian infrastructure in Kyiv, including apartment buildings and educational facilities, while water infrastructure was also affected. Kyiv mayor Vitali Klitschko reported 20 people injured, including at least two children.

Water infrastructure hit as winter concerns grow

The overnight strikes affected Kyiv’s water infrastructure, temporarily disrupting water supply on the left bank and reducing pressure in some areas on the right bank.

Kyivvodokanal said its specialists restored operations and that water supply is now fully functioning across the capital.

The damage comes as Ukrainian authorities have warned that Russia could target critical water infrastructure as winter approaches, potentially adding another major threat to civilians alongside attacks on Ukraine’s electricity and heating systems.

Russia has repeatedly used winter strikes to target Ukraine’s critical infrastructure, particularly electricity and heating, leaving civilians without power, heat, and basic services during freezing weather. 

This winter is expected to bring a heavier campaign: Russia has intensified its attacks since the summer, increasingly targeting food-related infrastructure and supplies in addition to energy facilities.

No missiles intercepted, once again

Russia launched ballistic and cruise missiles alongside 157 Shahed-type attack drones and decoy drones, according to Ukraine’s Air Force.

The ballistic missiles included Iskander-M, S-400 and North Korean KN-23 missiles launched from Russia’s Bryansk and Voronezh oblasts. Russia also launched four Kalibr cruise missiles and Oniks missiles.

Ukraine’s air defenses reported destroying or suppressing 131 aerial targets, but none of the ballistic weapons were among those intercepted. The 131 targets consisted of seven Bandеrol/Dan-T missiles and 124 Shahed, Gerbera, and other drones.

Once again, Ukraine intercepted none of the Russian ballistic missiles, underscoring the country’s shortage of high-end air-defense interceptors needed to defend against Russia’s increasing ballistic missile attacks.

However, Ukraine’s General Staff reported strikes on two of the S-400 systems that Russia uses to launch ballistic missiles from Bryansk Oblast. 

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Ukraine strikes two Russian S-400 launchers in Bryansk. The same systems were used to attack Kyiv overnight.

Kyiv hit across several districts

Kyiv police reported damage in the Darnytskyi, Dniprovskyi, and Solomianskyi districts.

Apartment buildings, educational facilities, a municipal building, vehicles, and railway tracks were damaged. Most of the 16 injured people were residents of a damaged 16-story apartment building in Dniprovskyi district.

The victims included a 10-year-old girl and a 12-year-old boy.

Kyiv’s military administration also reported a strike on a warehouse building in Podilskyi district.

The Air Force said Russian missiles and attack drones hit 36 locations across Ukraine, while debris from intercepted targets fell at five locations.

Russia also hits Odesa and Zaporizhzhia

Russia’s overnight attack on Odesa Oblast continued for much of the night, injuring seven people, including children aged four and 13, Odesa Oblast Governor Oleh Kiper reported.

One Russian drone struck a high-rise apartment building in Odesa, destroying 10 apartments on the 14th–16th floors and damaging 11 cars. Three people were injured there, including the four-year-old child. 

Other strikes damaged at least five residential buildings, a kindergarten, a dormitory, a restaurant’s outdoor area, warehouses, garages, and cars. An elderly woman and the 13-year-old child were among four other people injured.

Zaporizhzhia was also hit by Russian missiles, with three people injured – a woman and two men. The missiles struck industrial facilities, partially damaging buildings and causing a fire at one site.

Later in the day, Russia attacked the village of Storchove in Zaporizhzhia Oblast with guided aerial bombs. One bomb hit a private house and outbuildings, killing a 51-year-old woman and injuring a 70-year-old man. The strike destroyed property the family had accumulated over decades, according to the Zaporizhzhia Regional Military Administration.

Russia also struck a passenger bus in Zaporizhzhia with an FPV drone near a public transport stop. Five people were injured. A regional official said Russia had “once again chosen not a military target, but people who were simply traveling about their business.”

Ukrainian forces struck two Russian S-400 launchers in Russia’s Bryansk Oblast on 16–17 September, Ukraine’s General Staff reported. These same systems were used to launch missiles at Kyiv last night.

Ukraine faces severe shortages of high-end air-defense interceptors capable of countering Russia’s ballistic missiles, making strikes on the launchers themselves increasingly important. Russia has used S-400 systems to launch missiles at Ukrainian cities, including Kyiv, so destroying these systems can reduce Russia’s ability to carry out future attacks.

S-400 missile systems hit

The General Staff said Ukrainian Defense Forces struck two S-400 launchers near Vygonichi in Bryansk Oblast as part of a series of attacks on Russian military targets.

The strikes took place as Russia launched another major overnight attack against Ukraine. According to Ukraine’s Air Force, Russian forces used S-400, Iskander-M and KN-23 ballistic missiles launched from Bryansk and Voronezh oblasts, among other weapons.

The S-400 is a Russian long-range surface-to-air missile system designed to detect and engage aircraft and missiles. It was originally designed for air defense, but Russia has also used S-400 systems to launch ballistic missiles for strikes against Ukrainian cities, including Kyiv.

Kyiv Oblast was among the main targets of last night’s Russian attack.

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One alternative to air defense: Ukraine strikes Russian Bastion system used to attack Ukrainian cities from Crimea

Ukraine targets Russian military infrastructure

The S-400 launchers were among several Russian military targets struck by Ukrainian forces on 16–17 September, the General Staff reported.

Near occupied Donetsk, Ukrainian forces hit a Russian site used to store, prepare, and launch attack drones. They also struck Russian logistics warehouses in Kurakhivka, Nova Mariivka, and Luhansk.

Ukrainian forces additionally hit Russian personnel concentration areas near Strilkove in occupied Kherson Oblast and Druzhne in occupied Luhansk Oblast.

The General Staff said operations against key Russian military targets are continuing.