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.
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Investigators were at the scene. No injuries were reported.
The fire happened at what used to be Antojitos Don Chepe, a restaurant.