BEIJING (AP): A long-distance bus collided with a van and plunged off a road into a river in central China, killing at least 13 people and injuring 10, a state news agency said Saturday.

The bus fell 15 meters (50 feet) into the river Friday in Hunan province, the Xinhua News Agency said. It was bound for the southwestern city of Chongqing from Shenzhen, a city near Hong Kong.

Police said the bus, with 33 people aboard, hit the van while overtaking it on a road and fell ``due to its own misoperation,'' Xinhua said.