Firefighters insulate the zone of fire in the forest at the border area of Qinhuangdao City's Funing County and Qinglong County, north China's Hebei Province, April 13, 2011. The forest fire broke out Tuesday noon, with over 7,000 mu (466.66 hectares) of forest burnt as of Wednesday noon, local authorities said. More than 1,000 fire fighters and 7,100 police and soldiers have been mobilized to battle the blaze. [Xinhua/Yang Shiyao]