Firefighters set up an isolation zone to extinguish a forest fire in Xiushan Forest of the Greater Hinggan Mountains, north China's Inner Mongolia Autonomous Region, June 22, 2019. A total of 4,340 firefighters are struggling to contain a forest fire in north China's Inner Mongolia Autonomous Region, local authorities said Saturday. The forest fire in Xiushan, under the jurisdiction of the Jinhe Forestry Bureau in the Greater Hinggan Mountains, raged for three days, according to firefighting headquarters. After overnight efforts, the fire is basically under control on the eastern and northern fronts. (Xinhua/Liu Lei)