Emergency services personnel move an injured passenger outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Emergency services personnel move an injured passenger outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Paramedics carry an injured woman from a subway station after a rush-hour subway train derailment in Moscow, Russia, on July 15, 2014. Picture: Ivan Sekretarev
Paramedics carry an injured woman from a subway station after a rush-hour subway train derailment in Moscow, Russia, on July 15, 2014. Picture: Ivan Sekretarev
Twenty-two people were killed when a Moscow underground train derailed between two stations during rush hour. File picture: Ivan Sekretarev
Twenty-two people were killed when a Moscow underground train derailed between two stations during rush hour. File picture: Ivan Sekretarev
Emergency services personnel carry an injured passenger outside a metro station following an accident on the subway in Moscow on July 15,  2014. Picture: Sergei Karpukhin
Emergency services personnel carry an injured passenger outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Emergency services personnel stand near a map of train lines outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Emergency services personnel stand near a map of train lines outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Emergency services personnel enter a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Emergency services personnel enter a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Eemergency services personnel wait outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin
Eemergency services personnel wait outside a metro station following an accident on the subway in Moscow on July 15, 2014. Picture: Sergei Karpukhin

Twelve people were killed on Tuesday and up to 120 others were injured when a Moscow underground train derailed between two stations during the morning rush hour, Russia’s Emergencies Ministry said.

Russia's investigative committee said it was looking into the causes of the accident. There seemed to be no suggestion of foul play.