A fire broke out at the refinery's primary oil processing unit, AVT-6, which accounts for nearly half of the facility's capacity. Damage assessments are currently ongoing, and partial operations may resume in a few days.
The Ryazan refinery, with an annual capacity of 13.7 million tons of oil, is Rosneft's largest facility and was hit by a drone for the second time in a month, the publication noted. The previous attack on Jan. 24 disabled a railway fuel loading dock, causing an 18-day suspension for repairs.
Ukrainian defense forces launched the latest attack overnight on Monday, Feb. 24. Social media reports confirmed at least five explosions near the refinery.
The Feb. 24 attack marks the third on the Ryazan refinery since the beginning of 2025. Previous strikes occurred on Jan. 24 and Jan. 26.