Rescuers search for students in the debris of a collapsed building at Juyuan Middle School in Juyuan Township of Dujiangyan, about 100 kilometres from the epicenter of an earthquake in Wenchuan county, Sichuan province May 12, 2008 in this picture distributed by China's official Xinhua News Agency
Local residents sleep on the streets after an earthquake in Mianyang, Sichuan province May 12, 2008.
A rescuer searches for victims at the collapsed site of a school building after an earthquake in Chongqing municipality May 12, 2008.
