KUNMING -- A Thai tourist was killed after a bus rolled over in southwest China's Yunnan Province on Sunday, local authorities said.

The accident occurred on a highway in Xishuangbanna Dai Autonomous Prefecture at around 9:10 a.m.. The tourist bus rolled over after colliding with a truck and then the road block.

One Thai tourist was killed on the spot, and three Thai people and the Chinese driver were injured, according to a statement from the local government.

The 48-seat bus was carrying 38 people, including 34 Thai nationals and four Chinese, it said.

The injured have been hospitalized. The cause of the accident is being investigated.