Blast occurs at Russian gas terminal

An explosion has happened at a gas export terminal near the city of St Petersburg in Russia, BBC reports quoting officials concerned.

The blast caused a large fire, state-owned RIA Novosti news agency said. It said the fire had been contained, and there were no reports of injuries.

The cause of the fire is not known, but local media have reported that drones had been seen in the area.

Both Russia and Ukraine have used drones in the current conflict. Ukraine usually does not admit such attacks.

Russia launched its full-scale of invasion of Ukraine nearly two years ago, but has made little progress in recent months.