Emergency workers carry a stretcher with corpses to an ambulance outside the Avtozavodskaya station. An explosion tore through a subway car in the Moscow metro, killing 39 people and wounding more than 134 others. Photo by WN
A female suicide bomber blew herself up in the packed Moscow underground train on Friday morning, killing at least 30 commuters, Russian agency News Ru reported.
Interfax also say Russian police is looking into a possible suicide female bomber.
If the explosion is confirmed as a bomb attack, suspicion is likely to fall on separatist militants from Chechnya.
One thousand and five hundred commuters are reported to have been on the underground train at the time of the explosion.
According to News Ru the train continued to move forward some 300 meters after the explosion went off.
Serious fire and thick smoke were reported inside.
Rescue teams are pulling the bodies of the killed and injured.