A drone attack has sparked a fire at an oil depot in a city in Russia that formerly hosted the olympics. There are also reports of fires at oil depots or refineries in other regions of Russia, including Tver and Stavropol, as well as a refinery in the Moscow area and a fuel depot in the Krasnodar region. The extent of the damage and the number of locations affected are not entirely clear, with some reports also mentioning a Ukrainian industrial site and casualties in Russia and Crimea.