About 170 firefighters battled the blaze that broke out on the fifth floor of a six-story commercial building in the Westlake District.
Firefighters rescued one person who was taken down with the help of a ladder. The condition of the person is unknown. Another person was being treated for burns.
The fire was contained to the southwest corner of the building.
The cause of the fire is unknown.
DEVELOPING: We will add more details to this report as soon as it becomes available.