Ukrainian drones strike Russia's Ryazan oil refinery, causing major fire

A Ukrainian drone attack on September 6 caused a major fire at the Ryazan oil refinery, one of Russia's largest, operated by Rosneft. A Russian Ka-52 helicopter was seen circling the burning facility. The refinery has an annual capacity of about 17 million tons of oil, producing gasoline, diesel, jet fuel, and other products. It is a key fuel supplier for Russian regions. Explosions were also reported in Rostov, where drones struck residential buildings. The attack is part of ongoing Ukrainian strikes on Russian energy infrastructure. The Ryazan plant's strategic importance makes it a high-value target for disrupting Russian fuel supplies.