At least seven people died and five injured when a truck hit two cars in China's Qinghai Province, media reports said on Monday.
The truck on Sunday hit a car from behind and pushed it forward to hit another trailer. The car then strayed to a sign board on the side, leaving all its five passengers dead, Xinhua news agency reported.
The truck then hit another car, injuring four passengers inside. Two passengers in the truck died at the scene.
