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.

As Ukrinform reported earlier, on the night of January 24, Russia confirmed a drone attack on 11 regions, the capital, and occupied Crimea. It was later clarified that the drones hit the Ryazan refinery, which was confirmed by the Security Service of Ukraine and the Special Operations Forces.

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.

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 Ryazan Oil Refinery in Russia has suspended operations due to damage from Ukrainian drone attacks, Reuters reported on Jan. 27, citing two industry sources. Ukraine confirmed hitting the plant in an overnight drone strike on Jan.