Black smoke is seen near a chemical plant where an explotion took place in Canberra, Australia, Sept. 16, 2011. Australian fire fighters on Friday said they have brought under control a massive chemical fire, but did not know how long it will take to extinguish the fire, which has sent a plume of potentially toxic smoke over Canberra. The fire broke out in Energy Services International, a chemical factory, on Dacre Street in the suburbs of Mitchell in Canberra's north, Australia Capital Territory at about midnight. [Xinhua/Cao Yang]