Six people were killed and at least 18 others were injured in a bus accident that occurred on Saturday in the city of Xinzhou in north China's Shanxi Province, according to provincial government sources.

Local police received word at 1:40 p.m. Saturday that a tour bus carrying 35 people overturned on a road in Xinzhou's Ningfu County, the sources said.

The injured have been sent to a local hospital for treatment. The cause of the accident is still under investigation.