A rescue miner fastens pipes at the Wangjialing Coal Mine, located across both Xiangning county and Hejin city, in northern China's Shanxi province April 2, 2010. Rescuers on Friday heard the sound of knocking on pipes at a flooded north China coal mine where 153 miners have been trapped for five days, the official Xinhua agency said. REUTERS/Jason Lee (CHINA - Tags: DISASTER)