Rescue workers search for victims as a disinfectant crew spays the area after a mudslide swept through the town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Wednesday, Aug. 11, 2010. Entire communities in Gansu province's Zhouqu district were swallowed up when the debris-choked Bailong River jumped its banks Sunday, releasing wave after wave of mud and rubble-strewn water.  (AP Photo/Ng Han Guan)

Photo by: Ng Han Guan

Rescue workers search for victims as a disinfectant crew spays the area after a mudslide swept through the town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Wednesday, Aug. 11, 2010. Entire communities in Gansu province's Zhouqu district were swallowed up when the debris-choked Bailong River jumped its banks Sunday, releasing wave after wave of mud and rubble-strewn water. (AP Photo/Ng Han Guan)