Russia's Saratov oil refinery stopped processing oil Wednesday after a drone attack. This incident follows similar Ukrainian strikes on Russian energy infrastructure. The Omsk oil refinery, Russia's largest, also halted operations earlier this week. These attacks have caused fuel shortages and price increases within Russia. The Saratov refinery suspended operations previously due to drone attacks.

Russia's largest oil refinery in the Omsk region of western Siberia has halted operations following a Ukrainian drone attack, two industry sources said on Tuesday.

The Omsk oil refinery has suspended operations following a drone attack by the Ukrainian Armed Forces. Fuel shortages are expected across Russia.