In this frame grab provided by the Russian Ministry for Emergency Situations shows frame grab from a video showing rescue teams working inside the tunnel where several cars of the wrecked train look almost coiled, occupying the entire space of the tunnel of Moscow subway in Moscow, Russia, on Tuesday, July 15, 2014. Workers were seen trying to force open the mangled doors of the car where dead bodies are supposed to be. A rush-hour subway train derailed in Moscow Tuesday, killing about a dozen people and injuring at least 150, emergency officials said. Several cars left the track in the tunnel after a power surge triggered an alarm, which caused the train to stop abruptly. (AP Photo/Russian Emergency Situation Ministry) ( APTOPIX Russia Subway Derailment )