Six people were killed and six others were injured when two vehicles collided on Sunday morning in Shilin County of southwest China's Yunnan Province. At about 7 a.m., a mini-bus and a truck crashed into each other on a highway in Shilin, Xinhua quoted the county's press office as saying. The driver and five passengers in the mini-bus died at the scene. The injured people have been sent to a local hospital. An investigation into the accident is under way.