Russian dashcam footage is by many considered a class on its own. The footage caught on BlackVue DR550GW-2CH last week in southern Moscow, showing the moment and aftermath of an explosion in the Moscow Metro, is no different! The Moscow Metro has since tweeted that the incident was caused by a leaky gas canister used by workers repairing the station’s passageway. Various sources say there were at least six injured victims of the explosion. More videos from the scene at RT.