Russia said on Monday it would investigate the cause of a large fire that erupted in the early hours of the morning at an oil storage facility in the city of Bryansk 154 km (96 miles) northeast of the border with Ukraine.
Unverified social media footage showed what sounded like two explosions followed by a tower of flames, with one unverified video showing a fire raging around a giant fuel reservoir.
Russia's Ministry of Emergency Situations said nobody had been hurt in the incident.
