🇷🇺🇺🇦Kirishi's KINEF refinery had just finished months of repairs from an earlier Ukrainian strike and was preparing to restart when a drone hit it again overnight.
This is one of Russia's largest refineries, processing about 20 million tons of oil a year, roughly 6.6% of the country's total refining capacity and it produces motor, aviation and diesel fuel that supplies Russian troops.
The strike landed alongside hits on Yeysk airfield and a drone launch site in Millerovo, part of Ukraine's wider campaign against Russian oil infrastructure and military sites.
Moscow has already warned it is preparing what it called massive strikes against Ukrainian energy facilities in response.