INNERMONGOLIA, July 8, Xinhua -- Nearly 1,000 firefighters have been working to extinguish forest fire occurred in the northern part of the Great Khingan Mountains in north China's Inner Mongolia Autonomous Region on July 6, 2015.

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Firefighters put out a forest fire in the northern part of the Great Khingan Mountains in north China's Inner Mongolia Autonomous Region, July 6, 2015. (Xinhua/Mao Yatuan)