"This refinery is one of the 10 largest oil refineries in Russia in terms of design capacity and is involved in supplying the Russian occupatying army," the General Staff said in a statement.

Drone strikes were reported across multiple Russian regions, including Nizhny Novgorod, Smolensk, Tver, and Bryansk, igniting fires and triggering air defence responses. While there were no reported casualties, an oil refinery in the city of Kstovo, Nizhny Novgorod, suffered significant damage.

"The Volgograd oil refinery has been hit. It is one of the largest in Russia. Its design capacity is about 14 million tons of oil per year, making it the sixth-largest refinery in Russia. The refinery produces gasoline, diesel fuel, fuel oil, and aviation fuel," Kovalenko said.

A Ukrainian drone attack ignited a massive fire at an oil depot in Russia 's Smolensk region early Tuesday, authorities reported. The incident marks the latest in a series of strikes targeting Russian energy infrastructure in recent weeks.

On the night of Friday, January 31, the Russian army launched 102 kamikaze drones at Ukraine. Ukrainian air defense forces operated in 12 regions of the country, according to the Air Force of the Armed Forces of Ukraine.

Russia launched an attack on Ukraine using 102 Shahed-type strike drones and various decoy UAVs on the night of 30-31 January 2025. Ukrainian air defence shot down 59 of them. Source: Ukraine’s Air Force on Telegram Details: The drones were launched from Kursk,