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.

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

Overnight into January 26, an oil refinery in the Ryazan Oblast is likely on fire as a result of a drone attack. Footage posted online confirms a fire at the

Ukraine on Sunday said that it repeatedly struck an oil refinery in Russia’s Ryazan region, the second such attack claimed by Kyiv this week. A statement by Ukraine’s General Staff claimed that the country’s armed forces, together with Ukraine’s Defense Intelligence, repeatedly struck facilities of the Ryazan Oil Refining Company.

The General Staff of Ukraine's Armed Forces confirmed an attack overnight that hit Russia's Ryazan Oil Refinery and the Ryazan Thermal Power Plant, leaving them ablaze Thursday morning.

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,

Ukraine on Sunday claimed a night-time drone attack on a Russian oil refinery south of Moscow, in the second attack on the same site in less that