Medical workers and policemen work at an explosion site in T3 terminal of the Beijing Capital International Airport in Beijing, capital of China, July 20, 2013. The explosion occured around 6:24 p.m. near the B exit of the terminal. A wheelchair-bound man, identified as Ji Zhongxing from east China's Shandong province, set off the home-made explosive device, an initial police investigation showed. (Xinhua/Chen Jianli)