Rescuers clean vehicle debris on the accident scene of the rear-end collisions at the Mengcheng section of the Nanjing-Luoyang Expressway near Bozhou, east China's Anhui Province, June 10, 2012. Eleven people were killed and another 59 injured in several rear-end collisions on the section of expressway on Saturday night, rescuers said Sunday.

Photo taken on June 10, 2012 shows the spot of rear-end collisions at the Mengcheng section of the Nanjing-Luoyang Expressway near Bozhou, east China's Anhui Province. Eleven people were killed and another 59 injured in several rear-end collisions on the section of expressway on Saturday night, rescuers said Sunday. 

Photo taken on June 10, 2012 shows the spot of rear-end collisions at the Mengcheng section of the Nanjing-Luoyang Expressway near Bozhou, east China's Anhui Province. Eleven people were killed and another 59 injured in several rear-end collisions on the section of expressway on Saturday night, rescuers said Sunday. 

An injured person receives medical treatment at the First People's Hospital in Mengcheng County of Bozhou City, east China's Anhui Province, June 10, 2012. Eleven people were killed and another 59 injured in several rear-end collisions on the Mengcheng section of the Nanjing-Luoyang Expressway near Bozhou on Saturday night, rescuers said Sunday.

Photo taken on June 10, 2012 shows the spot of rear-end collisions at the Mengcheng section of the Nanjing-Luoyang Expressway near Bozhou, east China's Anhui Province. Eleven people were killed and another 59 injured in several rear-end collisions on the section of expressway on Saturday night, rescuers said Sunday.