Beijing (AP): State media say at least 14 people have died in a collision between a bus and a tractor in eastern China.

The official Xinhua News Agency says an explosion occurred when the bus and tractor collided on Saturday in Wenzhou city, killing 13 people immediately. Another person died later in a hospital.

It was the second serious collision involving a bus in less than a month. Ten people died when a coach hit a van crowded with migrant workers in southwest China last month.

Road accidents are common in China because of overloaded and unsafe vehicles, poor road conditions and bad driving habits.