The reported strike comes two nights after Ukrainian forces launched a joint attack against the refinery that allegedly damaged multiple on-site facilities.

On the night of January 26, explosions were heard over Ryazan, Russia. The Russians claim that unidentified drones once again attacked an oil refinery, which then caught fire, according to Russian Telegram channels.

Emergency crews in Russia’s Ryazan region are responding to an early morning drone attack. Governor Pavel Malkov reported that air defense units intercepted drones targeting the main town. Unverified videos on Telegram suggest major fires,

The Security Service of Ukraine and Special Operations Forces struck one of russia's largest refineries – the Ryazan Refinery and Ryazan CHPP.The Ukrainian

Ukrainian drones hit a Russian oil refinery in the city of Ryazan overnight, causing a fire and damaging equipment at one of Russia's biggest refineries, four industry sources told Reuters on Friday.

Ukraine launched drone attacks on Russian regions and a significant oil refinery, destroying 15 drones and two sea drones. The Ryazan region suffered eight attacks, Kursk six, and Belgorod one. Though no casualties were reported,

The Ryazan Oil Refinery is one of the four largest refineries in Russia. Therefore, strikes on the facility are crucial for disrupting the occupiers' logistics, according to the Ukrainian Armed Forces' Unmanned Systems.

Kyiv on Sunday claimed responsibility for an overnight drone attack on a Russian oil refinery, making it the second attack on the same site in less than two weeks. Ukraine's military said that "the Defense Intelligence of Ukraine hit the facilities of the Ryazan Oil Refining Company again.

Ukrainian defenders have struck the oil refinery in the Ryazan region for the second time this week. They also launched an attack on a forward command post of the Russian forces in the Kursk region, according to the General Staff of the Ukrainian Armed Forces.