Moscow August Bombing

Firefighters extinguish a burning car after an explosion in front of the Rizhskaya subway station in Moscow, Aug. 31, 2004. A suspected Chechen suicide bomber blew herself up outside the busy subway stop, killing at least 10 people.

Russian students and their unidentified teacher, left, put flowers at an explosion site near the Ryzhskaya subway station, Sept. 1, 2004. Moscow commuters, distraught by a suicide bombing near a subway stop, laid a phalanx of flowers near the station entrance Wednesday and police promised heightened security on the sprawling city's transit system.

Onlookers stand near the site of an explosion outside the Rizhskaya subway station in Moscow, Aug. 31, 2004. A female suicide bomber blew herself up outside a busy Moscow subway station.

Interior Ministry soldier holds a stretcher, as another one stands with a dog near the site of an explosion outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

Interior Ministry sappers work at the site of an explosion, with two burnt cars in the background, outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

A body of a victim of an explosion lies on the ground as firefighters extinguish a fire in a car after a blast outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

Bodies of victims of an explosion are seen outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

A man injured in an explosion is given first aid outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

A Federal Security Service officer, left, walks with passers-by near the site of an explosion outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

Onlookers stand near the site of an explosion outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

Police officers sit in a car near the site of an explosion outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.

A man, left, and a woman injured in an explosion are given first aid in an ambulance outside the Rizhskaya subway station in Moscow, Aug. 31, 2004.