Ukrainian forces struck the Slavneft-YANOS Oil Refinery in Yaroslavl City overnight on August 27 to 28, causing a fire.
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Ukrainian officials reported that Ukrainian forces struck the Slavneft-YANOS Oil Refinery in Yaroslavl City overnight on August 27 to 28, causing a fire.
The AVT-4 was already undergoing repairs after being damaged in an earlier drone attack on 28 August.
The ASTRA Telegram channel reported a fire at the Slavneft–YANOS oil refinery.
Ukrainian drones targeted one of Russia's largest oil refineries in Yaroslavl.
On Friday, Aug. 28, drones struck the Yaroslavnefteorgsintez (Slavneft-YANOS) refinery in the city of Yaroslavl.
The attack prompted local authorities to block roads leading toward Moscow and reroute public transport.
Ukrainian FP-1 drones struck the Slavneft-YANOS oil refinery in Yaroslavl.
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Source story: russian-offensive-campaign-assessment-august-28-2026