A bus overturned north of Damascus on Saturday and injured 40 people of various Arab nationalities, Syria's official SANA news agency reported. The accident happened on a highway near the town of Qastal, 60 kilometers (37 miles) north of the capital, Damascus, SANA said. Policemen at the crash site said the accident occurred when a front wheel of the bus exploded while traveling at normal speed, according to the agency. The injured were hospitalized and treated, the agency added, according to AP.