Drones attacked Russia's Krasnodar Krai on Feb. 10, reportedly targeting the Afipskiy oil refinery, a key facility processing 6.25 million tons of oil annually, claimed Andrii Kovalenko, head of Ukraine's Center for Countering Disinformation.

The refinery, located roughly 200 kilometers (124 miles) from the front line, is a strategic logistics hub for diesel fuel and aviation kerosene used by Russian troops, Kovalenko said.