Four people are dead and 15 are injured after a passenger bus collided with a truck Wednesday in Henan province, the Gushi County government announced on Weibo.

The accident — which occurred at the intersection of a county road and a provincial road at around 8 a.m — caused the bus to turn over. All of the injured were sent to a local hospital for treatment, the statement said.

The total number of passengers on the bus at the time of the accident has yet to be determined, and local police are investigating the cause of the accident. (Image: @博陵文心雕龙 on Weibo)