One of the primary targets was the Afipskiy oil refinery, located in Krasnodar Krai. The refinery lies about 200 kilometers from the front lines and plays a significant role in supporting Russian military operations.

Drone attacks in the early hours of Thursday triggered a fire at the independent Afipsky refinery in southern Russia, according to regional emergency services.

More than 120 firefighters were trying to extinguish a blaze at an oil depot in the Russian city of Sochi that was sparked by a Ukrainian drone attack, regional Governor Veniamin Kondratyev said early on Sunday on the Telegram messaging app.