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

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.

Ukrainian troops hit the facilities of Russia’s Ryazan Oil Refining Company again on the night of 25-26 January. Source: General Staff of the Armed Forces of Ukraine Details: Explosions and a fire were reported in the region.