NEW YORK (CNN) - Four firefighters were injured while battling a fire Monday.
Video captured the moment when a 20-foot section of the roof fell onto them. Officials said the fire broke out after midnight in one home then spread to two neighboring brownstones.
Two of the firefighters hit by the debris were treated at the scene. The other two were taken to the hospital with minor injuries.
The cause of the fire is under investigation.
The FDNY said 10 people were displaced.
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