2 Blasts Hit Metro

Police officers evacuating people from the Park Kultury metro station in downtown Moscow on Monday, March 29.

Police officers evacuating people from the Park Kultury metro station in downtown Moscow on Monday, March 29.

Emergency Ministry officers and firefighters carrying a body from the Lubyanka metro station to an ambulance in downtown Moscow on Monday, March 29.

Interior Ministry officers working near the entrance of the Lubyanka metro station in Moscow on Monday, March 29.

In this image from video, Moscow Mayor Yuri Luzhkov speaking to media Monday, March 29. Luzhkov said both explosions were believed to have been set off by by female suicide bombers.

People waiting for public transport near the Park Kultury metro station Monday morning.

An Emergency Ministry officer using a mobile phone in downtown Moscow on Monday, March 29.

An Emergency Ministry helicopter preparing to ascend near the Lubyanka metro station on Monday, March 29.

Interior Ministry officers standing guard in front of the exit of the Lubyanka metro station on Monday, March 29.

In this image from a security camera, bodies are seen lying in the passageway of the Lubyanka metro station in central Moscow after a bomb blast on Monday, March 29.

Interior Ministry officers keeping watch while people pass by at the Kuznetsky Most metro station on Monday, March 29.

Passengers trying to walk down the stairs during rush hour at the Prospekt Mira metro station on Monday, March 29.

OMON riot police outside the Lubyanka metro station, where the first blast occurred at 7:57 a.m. Forty minutes later, a second bomb exploded three stops to the southwest, at Park Kultury.

Medvedev and key first-response officials observing a minute of silence before a Kremlin meeting on the attacks.

A woman crying as Interior Ministry officers stand guard outside the Lubyanka metro station on Monday morning.