Syria's air force on Saturday struck a besieged, rebel-held town near Damascus where UN and Red Crescent workers distributed aid, a monitoring group and activists said. "Two air strikes hit Douma during a visit of a delegation of the United Nations to the town's outskirts," said the Syrian Observatory for Human Rights. Douma is in the Eastern Ghouta area of Damascus province, where local residents suffer food and medical shortages. Activist Hassan Takieddin said 400 aid parcels were distributed "to the whole of Eastern Ghouta.