Dramatic footage has emerged from China of at least one explosion at a chemical warehouse in China. <br /><br />The video, filmed in Yichun, Jiangxi Province on Monday, shows bright flames and heavy black smoke rising from the factory into the sky. <br /><br />One of the explosions was reportedly so large, that the glass of the windows in a factory 500 metres away was smashed. <br /><br />According to local reports, it took 120 firefighters and emergency workers 11 hours to extinguish the blaze. <br /><br />There were no reported casualties.