LANZHOU - Six people were killed and 16 injured in a road accident in Northwest China's Gansu province on Monday, local authorities said.

Rescuers pull out a survivor, trapped under an overturned truck, from the site of a road accident in Ningyuan township, Dingxi city, Northwest China's Gansu province, June 27, 2011. [Photo/Xinhua]

The accident occurred at around 5 pm on a highway in Ningyuan township, Anding district in the city of Dingxi, where a training truck from a driving school in Dingxi, driven by a trainee, lost control and rolled off a bridge, said a spokesman with the provincial traffic police department.

The injured were rushed to hospital to receive treatment. The cause of the accident is under investigation.