In this image taken from video released June 1, 2025, by a source in the Ukrainian Security Service shows a Ukrainian drone striking Russian planes deep in Russia’s territory. AP/Source in the Ukrainian Security Service hide caption
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AP/Source in the Ukrainian Security Service
KYIV, Ukraine — A Ukrainian drone attack has destroyed more than 40 Russian planes deep in Russia’s territory, a Ukrainian security official told The Associated Press on Sunday, while Russia pounded Ukraine with missiles and drones a day before the two sides meet for a new round of direct talks in Istanbul.
The official, who spoke on condition of anonymity to disclose operational details, said the attack took over 1 1/2-year to execute and was personally supervised by Ukrainian President Volodymyr Zelenskyy.
The operation saw drones transported in containers carried by trucks deep into Russian territory, he said. The drones hit airfields including the Belaya air base in Russia’s Irkutsk region, more than 4,000 kilometers (2,500 miles) from Ukraine. It is the first time that a Ukrainian drone has been seen in the region, local Gov. Igor Kobzeva said, stressing that it did not present a threat to civilians.
The attack was disclosed on the same day as Zelenskyy said Ukraine will send a delegation to Istanbul for a new round of direct peace talks with Russia on Monday.
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In a statement on Telegram, Zelenskyy said that Defense Minister Rustem Umerov will lead the Ukrainian delegation. “We are doing everything to protect our independence, our state and our people,” Zelenskyy said.
Ukrainian officials had previously called on the Kremlin to provide a promised memorandum setting out its position on ending the war before the meeting takes place. Moscow had said it would share its memorandum during the talks.
Russian strike hits an army unit
Russia on Sunday launched the biggest number of drones — 472 — on Ukraine since the full-scale invasion in February 2022, Ukraine’s air force said.
Russian forces also launched seven missiles alongside the barrage of drones, said Yuriy Ignat, head of communications for the air force. Earlier Sunday, Ukraine’s army said at least 12 Ukrainian service members were killed and more than 60 were injured in a Russian missile strike on an army training unit.
The strike occurred at 12:50 p.m., the statement said, emphasizing that no formations or mass gatherings of personnel were being held at the time. An investigative commission was created to uncover the circumstances around the attack that led to such a loss in personnel, the statement said.
The training unit is located to the rear of the 1,000-kilometer (620-mile) active front line, where Russian reconnaissance and strike drones are able to strike.
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Ukraine’s forces suffer from manpower shortages and take extra precautions to avoid mass gatherings as the skies across the front line are saturated with Russian drones looking for targets.
“If it is established that the actions or inaction of officials led to the death or injury of servicemen, those responsible will be held strictly accountable,” the Ukrainian Ground Forces’ statement said.
Northern pressure
Russia’s Ministry of Defense said Sunday that it had taken control of the village of Oleksiivka in Ukraine’s northern Sumy region. Ukrainian authorities in Sumy ordered mandatory evacuations in 11 more settlements Saturday as Russian forces make steady gains in the area.
Speaking Saturday, Ukraine’s top army chief, Oleksandr Syrskyi, said that Russian forces were focusing their main offensive efforts on Pokrovsk, Toretsk and Lyman in the Donetsk region, as well as the Sumy border area.
