A wall crumbles as a massive blaze rips though a Brooklyn building.
Two firefighters were injured early Saturday when a fire forced a wall collapse in Brooklyn.
The four alarm fire broke out around 4 a.m. in the seven-story building under construction on Washington Avenue in Prospect Heights.
A falling brick hit a firefighter in the face, officials said.
The building was vacant, but officials say three people suffered smoke inhalation as the fire and smoke spread to surrounding areas.
Stephen Lockett, a resident at a nearby building, heard the wall collapse. "I woke up. It sounded like someone was breaking into the apartment. I look in the bathroom and see this red blaze breaking through the window."
The fire took about three hours to bring under control. The cause of the blaze is not yet known.
The firefighters were treated and expected to recover.