Footage has emerged of commuters in Vyborgskaya subway station 20 minutes before it was evacuated on Monday after an explosion happened on a train.

The video shows commuters leaving the station as an announcement details the stations that were closed following the explosion between Sennaya Ploshchad and Tekhnologichesky Institut stations.

According to reports, around 10 people were killed when an explosive device detonated on a train earlier.

Another device was reportedly neutralised at Ploshchad Vosstaniya station, three stations away form Vyborgskaya station.