More than 654 people have been killed in Moscow bombings and other attacks over the past 15 years. Here's a timeline, beginning with the Jan. 24, 2011, explosion at Domodedovo airport.

Jan. 24, 2011  Bombing, Domodedovo airport international arrivals hall: at least 36 people killed; around 180 injured. Two weeks later Chechen warlord Doku Umarov said he ordered the attack.

March 29, 2010 — Double suicide bombings, Moscow subway, during rush hour: 40 killed; more than 100 injured. Umarov claimed responsibility for the attack.

Nov. 27, 2009  Bombing, high-speed Moscow-to-St.Petersburg train (the Nevsky Express): 26 dead; 100 injured. 700 people were on the train.  Umarov's group said he ordered this attack.

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Investigators and rescue workers examine the train cars damaged in the Nov. 27, 2009, bombing of the Nevsky Express en route from Moscow to St. Petersburg. (Ivan Sekretarev/Associated Press)

Aug. 13, 2007  Bombing, the Nevsky Express: 60 injured.

Aug. 31, 2004 Suicide bomber blows herself up outside Rizhskaya subway station: 10 killed; 50 injured. The Islambuli brigades, an Islamist extremist group, claimed responsibility.

Aug. 24, 2004  Two female suicide bombers blow themselves up aboard two Russian Tupolev jets that took off from Domodedovo airport: 90 killed.

Feb. 6, 2004 Suicide bomber, Moscow subway train, rush hour: 41 killed; 134 injured.

Dec. 9, 2003 Two female suicide bombers, National hotel. 6 killed; 13 injured. Officials said one of the bombs detonated prematurely.

July 5, 2003  Two female suicide bombers, open-air rock music festival, Tushino airfield:  16 killed; 60 injured.

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A Russian special forces officer carries a body out of a Moscow theatre where about 850 hostages were held by Chechen rebels on Oct. 26, 2002, as unidentified bodies lie in the foreground. Special forces troops stormed the theatre, killing the rebels and 129 of the hostages. (Dmitry Lovetsky/Associated Press)

Oct. 23-26, 2002 — Hostage-taking, Dubrovka theatre during a performance of Nord-Ost. Chechen rebels took about 850 people hostage. After two days, Russian special forces stormed the theatre: 129 hostages and 41 Chechen fighters were killed, mostly from the effects of a narcotic gas Russian forces used to incapacitate the rebels.

Feb. 5, 2001 Bombing, Moscow subway, Belorusskaya station: 20 injured.

Aug. 8, 2000 — Bombing, pedestrian tunnel leading to Tverskaya metro station: 13 killed; 90 injured.

Sept. 13, 1999 — Bombing, eight-storey apartment building: 119 killed; 200 injured.

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Rescuers and firefighters work at the site of a massive explosion that destroyed a nine-storey apartment building in the southeastern part of Moscow on Sept. 9, 1999. (Sekretarev/Associated Press)

Sept. 9, 1999 — Bombing, nine-storey apartment building: 94 killed; 249 injured. The Russian government blamed Chechen rebels for the Sept. 9 and Sept. 13 attacks, as well as for bombings at two other apartment buildings elswhere in Russia. Others said the government orchestrated the bombings as a pretext for reigniting the war in Chechnya.  Russian troops were ordered back to Chechnya at the end of the month.

Aug. 31, 1999 — Bombing, underground Manezh shopping centre, close to the Kremlin: 1 killed; 40 injured.

April 26, 1999 — Bombing, Intourist hotel overlooking Red Square: at least 11 injured.

Jan. 1, 1998 — Bombing, Moscow subway, Tretyakovskaya station. three injured. No one claimed responsibility.

June 11, 1996 — Bombing, Moscow subway, Serpukhovskaya line: four killed; 12 injured. Officials blamed Chechen separatists, but no one claimed responsibility.