A policeman mourns during a silent tribute in Chengdu, capital of the quake-hit southwest China's Sichuan Province, May 19, 2008. China began on May 19 a three-day mourning for the victims of the 8.0-magnitude quake hitting southwest and northwest China on May 12.

Medical workers with Renmin Hospital of Guizhou mourn during a silent tribute in Guiyang, capital of southwest China's Guizhou Province, May 19, 2008. China began on May 19 a three-day mourning for the victims of the 8.0-magnitude quake hitting southwest and northwest China on May 12.