记者从国家消防救援局了解到，5月7日22时许，内蒙古呼伦贝尔市陈巴尔虎旗胡列也吐方向俄罗斯境内发生草原火灾，在大风作用下向我国境内蔓延。火情发生后，内蒙古森林消防总队呼伦贝尔市支队迅速启动应急响应机制赶赴现场救援。
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8日早8时，救援人员已到达火场一线。经勘查发现，植被以针茅草为主，呈断续火线沿额尔古纳河在俄方境内蔓延，火线长约15公里。据呼伦贝尔市气象台发布大风蓝色预警显示，火场区域今日平均风力达6级以上，阵风7—8级并将持续，存在较大风险。
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截至8日11时左右，俄方境内火线距离我方边界约5公里。森林消防队伍345人与地方专业扑火队415人正在一线沿线布控，在重点地段巡护看守，持续关注火情变化。