A Syrian airforce raid on a rebel-held town, strategically situated on the Damascus-Aleppo highway, killed at least six civilians on Tuesday, including children, opposition campaigners in the area said. Video footage showed men pulling out the body of a toddler from a flattened building in a northern neighbourhood of Maarat Al-Numaan, 300 kilometres (188 miles) north of Damascus, which has been under aerial and ground bombardment since rebels seized control last month. The footage could not be independently verified.