BIRMINGHAM, Ala. —

Drone video from WVTM's Sky 13 shows firefighters battling a massive fire that has displaced at least 18 people in Birmingham's Five Points South neighborhood Friday.

You can see the drone video in the video player above.

Fire crews said people heard explosions before the fire first started at a vacant business on 20th Street South. It then spread to two apartment and condominium buildings just after 5:30 a.m.

Birmingham Fire and Rescue said the fire spread to a brick apartment and condominium buildings on either side. A total of three buildings have been involved.

Watch WVTM 13 breaking news team coverage from Friday morning below.

Within a couple of hours, one of the brick buildings where the fire had spread went back up in flames and became fully engulfed. Later

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