Emergency officials told The Associated Press that at least 50 of those injured were in grave condition.
By late afternoon, rescuers had recovered seven bodies and were working to extract 12 more trapped in two wrecked train cars at the Park Pobedy station, said Alexander Gavrilov, deputy chief of Moscow's emergency services. One woman taken from the scene died at a Moscow hospital.
One citizen of China and one citizen of Tajikistan were among those killed, Russian news agencies quoted city officials as saying.
Over 1,100 people were evacuated from the train, which was stuck between two stations, in a rescue operation that lasted at least seven hours.
In video released by the Emergency Situations Ministry, several wrecked train cars looked almost coiled, occupying the entire width of the tunnel.
Read more: http://www.foxnews.com/world/2014/07/15/at-least-10-dead-dozens-gravely-injured-in-moscow-subway-derailment/?intcmp=latestnews
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.