The August 2004 Moscow metro bombing took place in the morning on August 31, 2004, when a female suicide bomber blew herself up outside Rizhskaya metro station, killing at least 10 people and wounding 50.

The official investigation concluded that it was organized by the same group as the February 2004 Moscow metro bombing

February 2004 Moscow metro bombing

The February 2004 Moscow metro bombing occurred on 6 February 2004 when a male suicide bomber killed 41 people near Avtozavodskaya subway station on the Zamoskvoretskaya Line in Moscow...

, as well as two previous terrorist attacks on bus stops in Voronezh

Voronezh

Voronezh is a city in southwestern Russia, the administrative center of Voronezh Oblast. It is located on both sides of the Voronezh River, away from where it flows into the Don. It is an operating center of the Southeastern Railway , as well as the center of the Don Highway...

, southern Russia, in 2004. The deaths included the bomber and her accomplice, Nikolay Kipkeev (Kipkeyev), the head of an Islamic militant group Karachay Jamaat from the republic of Karachay-Cherkessia

Karachay-Cherkessia

The Karachay-Cherkess Republic , or Karachay-Cherkessia is a federal subject of Russia . Population: -Geography:*Area: *Borders:**internal: Krasnodar Krai , Kabardino-Balkar Republic , Stavropol Krai ....

, as the bomb apparently exploded prematurely while the two were standing in the entrance hall of the metro station.