OCFA firefighters responded to a fire at a boarded up vacant building just before 9 am in Santa Ana today at 1904 W. 1st St., according to the OCFA Twitter account.
The firefighters had to force their way in the building, through heavy black smoke.
Investigators were at the scene. No injuries were reported.
The fire happened at what used to be Antojitos Don Chepe, a restaurant.