Three people were killed and 13 injured Sunday after a bus overturned in south China's Guangxi Zhuang Autonomous Region, police said. The accident occurred at about 3 p.m. on a highway in Long'an County, killing three passengers at the scene, Xinhua quoted traffic police as saying in a statement. The 13 injured have been sent to hospital, it said. Local traffic police were investigating the cause of the accident.