A woman suicide bomber is believed to have blown up a train in the Moscow metro during rush hour today, killing at least 40 people and injuring more than 100.

A suspected suicide bomb tore through the Moscow metro during today’s morning rush hour, killing 30 people and wounding up to 150.

This morning's explosion in the Moscow metro has left as many as 22 people dead.

An explosion rocked the Moscow metro today, causing casualties, the Interfax news agency reported.