Russia has carried out air strikes on Daesh stronghold of Raqa and destroyed infrastructure "used to train terrorists", the defence ministry said on Friday.

"On October 1, Su-34 planes carried out strikes on an IS training camp... and on a camouflaged command post... southwest of the town of Raqa," the ministry said. "As a result of the strikes, Daesh command point was put out of action. The infrastructure used to train militants was completely destroyed."