An oil refinery in the Leningrad region briefly caught fire late on Sunday, emergencies services said.
The fire at the Kinef refinery, one of the largest in north-western Russia, was reported at about 8:20 pm local time (16:20 GMT). It broke out in the middle of an operating petroleum refining facility some 15-20 meters above the ground.
Fifty firefighters were sent to the scene, and the flame was put out at 10:40 pm local time (18:40 GMT).
No injuries were reported.
The Kinef oil refinery is owned by Surgutneftegas, one of Russia’s largest energy companies. The plant was built in 1966.
In 2008, five people were killed in a hydrogenous mixture explosion and a subsequent fire at the refinery.