People mourn during a silent tribute in Lhasa, capital of southwest China's Tibet Autonomous Region, May 19, 2008. (Xinhua)
Students of East China Jiaotong University mourn during a silent tribute in Nanchang, capital of east China's Jiangxi Province, May 19, 2008. (Xinhua)
People bang the bell during a silent tribute to the people killed in the earthquake at the China Millennium Monument in Beijing, capital of China, May 19, 2008. (Xinhua)
Railway workers mourn and train horns wail in Zhengzhou, capital of central China's Henan province, May 19, 2008. (Xinhua)