![](http://www.ecns.cn/hd/2023/04/21/cd0ac89f7bbc43d6813110b80a170ae9.jpg)
Firefighters try to extinguish a grass fire spreading across the border to Russia and China in Hulunbuir, Inner Mongolia Autonomous Region, April 20, 2023. (Photo: China News Service/Li Zhuang)
The grass fire broke out on Thursday afternoon. More than 300 firefighters and 50 vehicles had been deployed from Inner Mongolia by Thursday night.
![](http://www.ecns.cn/hd/2023/04/21/6eb3baa0797f44a3913847efed0f1764.jpg)
Firefighters try to extinguish a grass fire spreading across the border to Russia and China in Hulunbuir, Inner Mongolia Autonomous Region, April 20, 2023. (Photo: China News Service/Li Zhuang)
![](http://www.ecns.cn/hd/2023/04/21/dc69bbc1d2d646058f0e74a86510bbe1.jpg)
Firefighters try to extinguish a grass fire spreading across the border to Russia and China in Hulunbuir, Inner Mongolia Autonomous Region, April 20, 2023. (Photo: China News Service/Li Zhuang)
![](http://www.ecns.cn/hd/2023/04/21/b5db5199bf1f49589f7f26515cd081ea.jpg)
Debris is seen on the grassland along the China-Mongolia border in Hulunbuir, Inner Mongolia Autonomous Region, April 20, 2023. (Photo: China News Service/Li Zhuang)
![](http://www.ecns.cn/hd/2023/04/21/731ce9481685464fbee20afd8c86edbc.jpg)
Debris is seen on the grassland along the China-Mongolia border in Hulunbuir, Inner Mongolia Autonomous Region, April 20, 2023. (Photo: China News Service/Li Zhuang)