BEIRUT - A Syrian rebel group which has received US military backing said it is investigating the beheading of a young child in Aleppo after video footage circulated showing the boy being killed by a man activists identified as a member of the group.
Images of a fighter cutting off the small boy's head with a knife matched some of the worst brutalities committed by the jihadist Islamic State group, which has killed hundreds of captives in Syria and neighboring Iraq in the last three years.
Before being killed, the boy is shown on the back of a truck being taunted by several men who say he was from a Palestinian faction which fights in Aleppo in support of President Bashar Assad.
"This is a prisoner from the Quds Brigade. They don't have men any more so they've sent us children today," one of the men said. "These are your dogs, Bashar, children of the Quds brigade," said another.