One of the depots is located in the Rostov region, which borders the war-torn areas in eastern Ukraine.
During the night, the region's governor Vasilij Gobulev alerted that four drones had been shot down over the region. In the morning, he announced that the drone attack had caused a fire at a fuel depot in the border area and that a firefighting effort was underway. A source within Ukraine's intelligence service confirms to AFP that it was a Ukrainian attack.
The second depot is located much further into Russia, in the city of Kotelnich, which is located in the Kirov region northeast of Moscow, about 110 miles from the Ukrainian border. It is, as far as is known, the first attack to occur in that region.
Two drones were shot down in Kotelnich and three others crashed into the facility, causing fires, according to Kirov's governor Aleksander Sokolov. According to him, the fires could be quickly extinguished.
A large fire has been raging at another fuel facility in Rostov since a Ukrainian drone attack on August 18. The facility is located near the city of Proletarsk, about 20 miles inland from Ukraine.