Ten of the 44 injured people were seriously injured, according to local government sources, after a tower-crane truck lost control and crashed into a line of vehicles 50 metres away from the Lanzhou South Toll Station on the Lanzhou-Haikou Expressway at 7.21pm in Lanzhou. Image copyright AFP Image caption An aerial view shows the scale of the pile-up

The crash comes less than a week after 13 people were killed when a bus plunged off a bridge and into a river in Chongqing , south-western China.
A lorry loses control at a toll station in Lanzhou, China, killing at least 15 people and injuring 44 others.