Residents were evacuated from two condos in the 200 block of Cottage Grove Lane in Encinitas Sunday afternoon, according to the San Diego Sheriff’s Department.
It is unclear how the fire started, but it broke out in one condo and spread to a second unit, officials said.
"Me and my dad went out to the garage and we just saw a bunch of flames," neighbor Ethan Bouche tells NBC 7.
One woman who lives in the house was transported to the hospital with unknown injuries from the fire.
"The whole neighborhood was pretty worried. We all came out to see whats going on," resident Kori Rea says.
Other residents have been displaced and will stay with friends for the night.
Some residents are without electricity, and San Diego Gas &Electric is en route to restore power.
No other information was immediately available.
Check back for updates on this breaking news story.