Local emergency services in Ufa, in Russia's Bashkortostan republic, reported a fire at one of the country's largest oil refineries, with one Ukrainian official describing the incident as a drone attack.
The Ministry of Emergency Situations of Bashkortostan reported a fire on the territory of the Ufa oil refinery in the early hours of Monday morning, without specifying the cause. There were no reports of casualties, and the ministry said around seven hours later that the blaze had been extinguished,ABC reported.
Russia's Defense Ministry reported the downing of seven Ukrainian drones overnight three over the Lipetsk region, two over the Rostov region and two over the Belgorod region but made no reference to any attack in Ufa.
Andriy Kovalenko, the head of the Counter-Disinformation Center operating as part of Ukraine's National Security and Defense Council, said on Telegram that "unknown UAVs attacked the Ufa refinery." ABC News could not immediately verify the claim.