The head of the U.N. observer team in Syria says at least 32 children under 10 years of age and more than 60 adults were killed in fighting in the center of the country Friday.
Gen. Robert Mood condemns the attack in Houla, northwest of Homs, as a "brutal tragedy" but hasn't identified who was responsible for the killing.
He says U.N. observers found artillery tank shells at the site of the fighting.
Activists say government troops shelled villages in central Syria before pro-regime thugs swept through the area and shot at people in the streets and in their homes, killing more than 90 people
Mood said in a statement Saturday that "whoever started, whoever responded, and whoever carried out this deplorable act of violence, should be held responsible."