Rescuers search for trapped people at the blast site of a workshop in Dianshang Village of Ouhai District in Wenzhou, east China's Zhejiang Province, Aug. 5, 2012. An explosion rocked a family-owned leather workshop in Wenzhou at about 4:50 p.m. Sunday, killing three people and injuring more than a dozen, local fire authorities said. From 20 to 30 people were buried under the collapsed house and a fire raged in an area of 200 to 300 square meters, rescuers said. The exact cause of the accident is being investigated. [Xinhua]