Emergency services put out a fire at an oil depot in southern Russia overnight after a drone was spotted flying overhead, the RIA news agency said on Tuesday.
The fire in the Russian town of Tuapse was reported at 0230 local time and spread to an area of about 200 square metres before it was extinguished, a local official said.
"The oil tanks were not affected. There was no spill of oil products. No injuries," said Sergei Boyko, who leads the local administration.
Tuapse lies on Russia's southern coast, about 240 km (149 miles) south-east of the Crimean peninsula.
Moscow has reported sporadic incidents at oil and gas infrastructure in regions near Ukraine since the war started a year ago.
Russian officials have often blamed Kyiv for sending drones into Russian territory.
Ukraine has not officially claimed responsibility for similar incidents, while sometimes hinting it was behind them.
