A cigarette, casually discarded by a resident, ignites a huge fire in the flat below in Beijing on May 21st.

Thankfully, no one was inside the flat at the time of the incident.

Upon receiving the emergency call, firefighters rushed to the scene. To swiftly extinguish the flames, firefighters divided into two teams. One team evacuated residents while the other prepared to enter the 27th floor to combat the fire internally.

Upon reaching the 27th floor, firefighters confirmed that the room where the fire originated was unoccupied. To expedite the extinguishing process, some firefighters went to the balcony of the 28th-floor residence and used hoses to spray water vertically onto the balcony where the fire started. Meanwhile, others broke down the anti-theft door of the burning flat on the 27th floor.

Ten minutes later, after successfully breaching the door, firefighters rushed into the burning flat and extinguished the fire. At 12:31 am, the flames were finally quelled, and fortunately, no casualties were reported.

Subsequently, investigators from the Fengtai District Fire Rescue Brigade, in collaboration with the Criminal Investigation Brigade of the Fengtai District Public Security Bureau, launched an investigation into the cause of the fire.

Fortunately, surveillance cameras installed at the base of the residential building captured the moment when the incident unfolded.

Upon reviewing the footage, investigators discovered that before the fire, a resident on the 28th floor had thrown an unextinguished cigarette butt out of the window. The butt hit the wall and rebounded onto the balcony of the 27th floor, subsequently igniting the combustible materials on the balcony and sparking the fire.

The perpetrator has since been detained by the Fengtai police for further investigation.

The video was provided by local media with permission.

5月21日凌晨，北京市丰台区五里店街道一栋高层居民楼的27层突发火灾，火势猛烈，万幸该户居民家中无人。而起火原因，竟然是28层的住户吸烟后乱扔烟头，掉入27层住户的阳台。
消防员接警后紧急出动，到达现场后发现，起火点位是27层一户人家的阳台处，此时火势处于猛烈燃烧状态。
为了尽快扑灭火势，消防员兵分两路，一路上楼疏散居民，另一路直奔27层准备内攻灭火。消防员到达27层后确认，起火的房间并没有人在家，为了尽快灭火，一部分消防员来到28层住户的阳台处，用水带连接水枪垂直喷射27层的起火阳台，其他消防员则破拆27层着火住户的防盗门。10分钟后，破拆成功，消防员冲入起火的房间内灭火，0时31分，明火被扑灭，火灾没有造成人员伤亡。
事后，丰台区消防救援支队的火灾调查人员联合丰台区公安分局刑侦支队的刑警，展开起火原因调查。恰好，事发居民楼楼下安装了拍摄高空抛物的探头，监控视频揭开了起火的原因——竟是一个小小的烟头。
调查人员查看监控发现，起火前28层的住户将未掐灭的烟头扔至窗外，烟头撞墙反弹至27层住户的阳台位置，随后引燃了阳台上的杂物，导致了火灾。
目前，肇事者已被丰台警方刑事拘留。