Drones suspected to have been launched by the Ukrainian military hit an oil storage facility in Russia's Kursk region, a regional Russian official said on Sunday.
A video posted online shows a huge flame lighting up the early morning sky, Radio Free Europe's Ukrainian service reported.
Three storage tanks caught fire as a result of a drone strike, acting Kursk Oblast Alexei Smirnov said on Telegram.
Russian Telegram channels led by Baz, which is linked to Russian security services, released a video showing what it said were tanks on fire.
Smirnov said that the drones also damaged several residential buildings in the region, and that one person was injured.
The Russian Ministry of Defense announced on Telegram that its air defense systems destroyed two drones over the Kursk region, which borders Ukraine.
Ukraine considers Russian oil infrastructure a legitimate military target and began targeting it in early 2024. Ukraine makes extensive use of long-range drones, which are virtually the only weapons capable of hitting military facilities deep inside Russia.
Russian oil refineries and military facilities are regularly targeted by Ukrainian drones. Ukrainian Pravda reported on Saturday that Ukrainian drones had hit an oil refinery in Russia's Ryazan region.
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