War correspondent Vladimir Romanov reported that last night "kamikaze debris" attacked the Yaroslavnefteorgsintez (YANOS) oil refinery in Yaroslavl.

According to sources, air defense forces repelled a drone attack on a Yaroslavl oil refinery. Falling debris caused a fire at an oil refining unit.

There have been no reports of casualties. Authorities are working on the ground, and the threat of further attacks remains. This attack was part of a massive overnight strike by the Ukrainian side against Russian regions, which completely ignored the ceasefire declared by Russia in honor of Victory Day.