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April 1 (Reuters) - Two Ukrainian military helicopters struck a fuel depot in the Russian city of Belgorod on Friday, a Russian official said, making the first accusation of a Ukrainian airstrike on Russian soil since Moscow invaded its neighbor in late February.
Video images of the purported attack posted online showed what looked like several missiles being fired from low altitude, followed by an explosion. Reuters has not yet been able to verify the images.
The helicopters struck the facility in Belgorod, some 35 kilometers (22 miles) from the border with Ukraine, after entering Russia at a low altitude, regional governor Vyacheslav Gladkov said on messaging app Telegram.