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.

Kyiv says it struck a Russian oil refinery and a microchip factory in attack which Moscow says contained 120 drones

Russia says it shot down more than 120 drones overnight, in what would be one of the largest attacks of the war.

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Videos showed fireballs over a facility in Ryazan, 110 miles southeast of Moscow. Kyiv is seeking to disrupt Russian military logistics and put pressure on the country’s economy by striking its oil industry.

Russia and Ukraine exchanged large drone attacks on Sunday night into Monday, with alleged Ukrainian UAVs forcing flight restrictions at three Russian airports.