Other major bombings in Syria

Some suicide bombings and large-scale explosions during Syria's uprising:

Dec. 23, 2011: Two car bombers blow themselves up near intelligence agency compounds in Damascus, killing 44 people in the first suicide attacks since the uprising began in March.

Jan. 6, 2012: A suicide explosion rips through a police bus at a Damascus intersection, killing 26.

Feb. 10, 2012: Two suicide car bombers strike in the northern city of Aleppo, killing 28 near a military intelligence building.

March 17, 2012: Three suicide bombings in Damascus -- two targeting government intelligence and security sites -- kill 27.

April 30, 2012: Twin suicide explosions strike near a government security compound in Idlib, killing nine.

May 5, 2012: A bomb strikes a car wash in Aleppo, killing five, a day after government troops raided a university dorm.