A fire broke out at the Ilsky oil refinery in Russia's southern Krasnodar region and was extinguished in about two hours, regional authorities said on Friday, but gave no details of what caused the fire or its impact on the refinery's output.
Ukraine has in recent weeks launched a series of drone attacks on Russian refineries, some of which were successful and caused significant damage and stoppages.
On Friday, the governor of Russia's Oryol region, Andrei Klychkov, said air defences there thwarted a Ukrainian drone attack on fuel and energy facilities.
The Ilsky refinery is one of the main fuel producers in southern Russia, with a capacity to refine 6.6 million tonnes of crude a year.
