Investigators in Vietnam are probing the circumstances leading up to a tour bus crash which left one person dead and 15 injured.
A bus carrying 40 Chinese tourists crashed into a truck on a mountain pass in the northern province of Lao Cai and overturned.
A 55-year-old man died at the scene after crashing his motorbike into the back of the bus.
National radio station VOV said the bus crashed head-on with the truck.
At least 15 of the bus occupants were taken to hospital but the extent of injuries was unknown.
The bus had left the popular hill resort town of Sa Pa en route for Lao Cai Town.
