Syrian government forces summarily executed 12 civilians on their way home from work in a fertiliser factory in Qusayr, activists in the central town told AFP by telephone on Friday. \"The workers were on a bus when they were forced to stop at a checkpoint on the outskirts of Qusayr\" late on Thursday afternoon, said Salim Kabbani of the Local Coordination Committees, which organise protests on the ground. \"Regime forces tied their hands behind their backs and shot them.\"