An explosion has reportedly taken place on the underground system in the Russian city of St Petersburg.
It's been reported that at least least 10 people have been killed and 20 others injured in the explosion.
Horrific images released shows one set of doors blown out, and a number of people on the ground with injuries
Eyewitness have been posting to twitter:
BREAKING: St. Petersburg subway explosion. Casualties reported. pic.twitter.com/Zet6bHgHOX— Paul Joseph Watson (@PrisonPlanet) April 3, 2017
One Witness posted this video to twitter:
No official statement has been released yet. The Russian president, Vladimir Putin, is currently in St Petersburg, and has been informed about the blast.