Rescuers Work At Scene Of Cave-In Accident In Nanning, China

Rescuers work at the scene of a cave-in accident in Nanning, capital of south China’s Guangxi Zhuang Autonomous Region, Jan. 2, 2013. The tunnel of a metro line under construction in Nanning collapsed Wednesday afternoon, trapping three workers. Two have been rescued and one still trapped. <Xinhua/Huang Xiaobang>