UN investigating Syrian massacre today

BEIRUT (AP)

U.N. observers investigating a reported mass killing in a Syrian village on Saturday found pools of blood in homes and spent bullets, mortars and artillery shells, adding details to the emerging picture of what anti-regime activists have called one of the deadliest events of Syria's uprising.

Dozens of people have already been buried in a mass grave, and activists are still struggling to determine the total number of people killed in what they say was a violent bombardment by government tanks and helicopters this week.