LA MESA, Calif. – A black smoke and fire ripped through the duplex in La Mesa Sunday, fire officials said.
The two units were damaged and the American Red Cross was summoned to help the displaced residents.
Fire officials said crews would likely remain at the scene into the early evening and to avoid the area.
The cause of the fire was under investigation.
Heartland firefighters were assisted by Cal Fire and San Diego Fire- Rescue Department.