A drone attack on the Russian city of Omsk, home to the country’s largest oil refinery, lasted more than eight hours on Nov. 11, according to local officials and monitoring channels cited by the Kyiv Independent.
The independent Russian Telegram channel Astra cited residents as reporting a fire near the Omsk refinery following the attack. Residents also reported power outages in some districts, the Kyiv Independent said.
The reports did not establish the extent of any damage to the refinery or whether operations had been disrupted.
The Siberian city lies about 2,500 kilometres (1,550 miles) from Ukraine’s eastern border.
The Omsk refinery has an annual processing capacity of more than 21 million metric tonnes of crude oil, making it Russia’s largest by refining capacity.
The facility accounts for about one-sixth of the country’s petrol and diesel production.
Ukrainian forces previously targeted the refinery in July and October 2026, according to the Kyiv Independent.
Following the July attack, Ukraine’s General Staff said the plant produced fuels, lubricants and petrochemical products and supplied the Russian military.
Ukraine has developed long-range drones capable of reaching targets deep inside Russia. President Volodymyr Zelensky has described such strikes as “long-range sanctions” and a means of putting pressure on Moscow.
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