A firefighter was injured battling a second-story fire in a Carlsbad apartment complex early Wednesday.
Firefighters still don't know what caused flames to rip through the apartment complex at about 1:55 a.m.
Emergency crews were called to the complex on Laguna Drive just west of Interstate 5 and found one unit engulfed in flames.
Officials evacuated all eight units, affecting approximately a dozen people.
Fire crews had to shut off electricity in the entire building just to get a handle on this fire. They got a handle on the fire within 10 to 15 minutes.
A family of four lived in the unit damaged by fire but officials say they were able to make it out okay.
One firefighter suffered minor injuries and was taken to the hospital.
None of the residents suffered any injuries.
Neighbors are waiting for SDG&E to restore power to the complex so that they can return to their homes.
Meanwhile, the couple that lived below the unit suffered lots of water damage.
The local chapter of the American Red Cross was en route to offer help to those displaced.