Photo taken on Aug 2, 2014 shows the workshop where a powerful blast happened in Kunshan, east China's Jiangsu province. A powerful factory blast has killed 69 people and injured over 120 others in Kunshan City on Saturday morning. The blast happened at around 7:37 am inside a wheel hub polishing workshop owned by the Kunshan Zhongrong Metal Products Co Ltd. An initial probe indicated that the explosion might be caused by dusts inside the workshop, officials said. [Photo/Xinhua] Live report