An injured passenger receives medical treatment after a traffic accident on the expressway between Nanning and Guilin cities, southwest China's Guangxi Zhuang Autonomous Region, Feb. 8, 2012. (Xinhua)

Photo taken on Feb. 8, 2012 shows the scene of the traffic accident on the expressway between Nanning and Guilin cities, southwest China's Guangxi Zhuang Autonomous Region. (Xinhua)

Photo taken on Feb. 8, 2012 shows the scene of the traffic accident on the expressway between Nanning and Guilin cities, southwest China's Guangxi Zhuang Autonomous Region. (Xinhua)

Photo taken on Feb. 8, 2012 shows the scene of the traffic accident on the expressway between Nanning and Guilin cities cheap oakleys, southwest China's Guangxi Zhuang Autonomous Region. (Xinhua)

Four people died after a coach carrying 55 people rear-ended a truck which was parked at the road side for reparation early Wednesday morning on the