Tower crane at construction site in China's Xi'an falls to prefab houses (3)

Workers clean the accident scene where the fallen tower crane damaged the prefab houses at a construction site in Xi'an, capital of northwest China's Shaanxi Province, Aug. 1, 2013. Due to sudden thundershower and strong wind, a tower crane at a construction site in Xi'an on early Thursday fell to the prefab houses where lived construction workers, killing four people and hurting four others. (Xinhua/Hou Zhi)