Following is the chronology of armed attacks in Russia since 1995.
June 1995: Chechen rebels seize hundreds of hostages in a hospital in southern Russian town of Budennovsk. More than 100 die as Russian commandos launch botched raid. Rebels allowed leaving for Chechnya after five days in return for freeing captives.
January 1996 — 350 Chechen militants seize a hospital in Kizlyar, eastern Chechnya, and take more than 3,000 people hostage. In military operation to free them, 65 civilians and soldiers are killed.
September 1999 — Bombs destroy apartment blocks in Moscow, Buynaksk and Volgodonsk, killing 200. The government blames Chechen rebels, who in turn accuse Russia’s secret services. Then Prime Minister Vladimir Putin responds by sending troops into Chechnya for the first time since 1997.
July 2—3, 2000 — Chechen guerrillas launch five suicide bomb attacks on bases of Russian forces within 24 hours. At least 54 people are killed at a police base near Grozny.
October 23, 2002 — About 50 Chechen rebels seize a Moscow theatre and take about 800 hostages. After a three—day siege, Russian forces storm the building using gas, killing most of the rebels and 115 hostages.
December 27, 2002 — Chechen suicide bombers ram vehicles into the local government headquarters in Grozny, bringing down the roof and floors of the four—storeyed building.
Chechen officials say about 80 people killed.
May 12, 2003 — Two suicide bombers drive a truck full of explosives into a government administration and security complex in Znamenskoye, in northern Chechnya. Fifty—nine people are killed, and scores hurt.
May 14, 2003 — At least 16 people are killed in a suicide bomb attack during a religious festival in the town of Iliskhan—Yurt, east of Grozny. 145 are wounded.
July 5, 2003 — Two women suicide bombers kill 15 people when they blow themselves apart at an open—air rock festival at Moscow’s Tushino airfield. 60 are injured
August 1, 2003 — A suicide bomber kills at least 50 people at a military hospital in the town of Mozdok in North Ossetia bordering Chechnya.
December 5, 2003 — An explosion on a commuter train in the Stavropol region north of Chechnya kills at least 36 people and injures more than 150.
February 6, 2004 — A rush—hour blast kills at least 30 people and injures 70 on a metro train in Moscow.
June 22, 2004 — Rebels seize an interior ministry building in Ingushetia, near Chechnya, killing at least 92 people, including the acting head of the Ingush Interior.
August 24, 2004 — Two Russian passenger planes are blown up almost simultaneously, killing 89. Federal Security Service focusing on whether acts of terrorism brought down the jets after traces of explosives found in wreckage of planes
August 31, 2004 — A female suicide bomber kills nine people and herself, and wounds 51 others when she detonates a bomb outside a subway station in north-eastern Moscow.
March 29, 2010 — Two suicide bombers target Moscow’s busy subway system during the morning rush hour killing at least 37 people and injuring over 30 others in twin blasts near the Kremlin and the Federal Security Service headquarters.