Fire fighters conduct rescue operation at the traffic accident site in the Guanmahu section of the Beijing-Tibet Expressway in Wuzhong City, northwest China's Ningxia Hui Autonomous Region, Oct. 1, 2013. At least 34 vehicles piled up at the Guanmahu section of the Beijing-Tibet Expressway Tuesday morning. Rescue operation is underway.(Xinhua/Li Li) |