Photos: Photos: Massacre in Syria Hide Caption 1 of 7

Photos: Photos: Massacre in Syria Massacre in Syria – Syrians surround a U.N observer vehicle after placing the bodies of a girl and man on the car in Houla on Saturday, May 26, 2012. The photo is from the opposition Shaam News Network. Forty-nine children were among the 108 slaughtered in Houla on Friday, May 25, U.N. monitors say. The massacre in Houla, a suburb of the anti-government bastion of Homs, has reignited international fury against Bashar al-Assad's regime. Hide Caption 2 of 7

Photos: Photos: Massacre in Syria Massacre in Syria – The body of a slain Syrian child lies next to other shrouded bodies at a hospital mortuary in Houla on Saturday in another photo from the opposition Shaam News Network. Al-Assad's regime insists it is not behind the massacre and blames terrorist groups. Syria has attributed violence on "armed terrorist groups" throughout the 14-month-old uprising. Hide Caption 3 of 7

Photos: Photos: Massacre in Syria Massacre in Syria – Bodies of children lie in a Houla hospital morgue before their burial Saturday in another photo from Shaam News Network. Images from the town show a room crammed with mangled and bloody bodies of children -- some with their skulls torn open. Hide Caption 4 of 7

Photos: Photos: Massacre in Syria Massacre in Syria – U.N. observers visit a hospital morgue in Houla on Saturday before the burial of massacre victims. Opposition activists and residents blame al-Assad's regime for the bloodbath. Hide Caption 5 of 7

Photos: Photos: Massacre in Syria Massacre in Syria – A Houla resident shows a body to a U.N. observer at a mosque in the central Syrian town. Some U.N. Security Council members condemned the attacks "that involved a series of government artillery and tank shellings on a residential neighborhood" as well as killings of civilians by close-range gunshots. Hide Caption 6 of 7