Ukraine struck the Yanos refinery and several Russian military-linked fuel and naval assets during operations on July 16-17, the General Staff of the Armed Forces of Ukraine said Friday.
The strikes damaged the Yanos refinery in Russia's Yaroslavl region. The attack ignited a fire at the site, while officials continued to assess the extent of the damage, the General Staff said.
The plant processes about 15 million metric tons of crude annually and produces gasoline, diesel, jet fuel, lubricants and bitumen, the General Staff said.
Ukraine also struck two tankers, including one gas carrier, and one tugboat in the Black Sea and Azov Sea, the General Staff said.
The military said Russia uses the vessels to transport oil, petroleum products and liquefied gas while bypassing international sanctions and to deliver fuel for military operations.
Ukrainian forces additionally struck the Shakhtarsk oil depot in Donetsk region as part of efforts to reduce Russia's military and economic capabilities, the General Staff said.
Gazprom and Rosneft did not immediately reply to' request for comment.