In pictures: Pipeline blast in E China (4/7)

Fire fighters are seen at the site of a pipeline explosion in Qingdao, east China's Shandong Province, Nov. 22, 2013. A fire broke out and the blast occurred around 10 a.m. in the Huangdao District when workers were repairing a petroleum pipeline which broke and resulted in an oil leakage around 3 a.m. At least 22 persons were killed in the blast as of 14:23 a.m. (Xinhua/Su Wanming)