Police build a second sandbag wall to stem the tide near Dongjiadu Road in Shanghai yesterday. On Tuesday, the cave-in of a metro tunnel under construction caused the collapse of buildings and a section of a floodprevention wall. ¡ª Chen Zhengbao
A surveyor checks the sandbagged wall at the metro tunnel cave-in site in Shanghai yesterday. After five days of struggle, thousands of rescuers stopped the ground subsidence over the weekend. ¡ª Shen Kai
