BRENTWOOD, Calif. (KRON) — Fire crews have successfully knocked down a commercial structure fire near the Sunset Park Athletic Complex in Brentwood, according to Contra Costa County Fire Protection District (Con Fire). One patient was transported for treatment for smoke inhalation and several overs were treated at the scene, according to a tweet from Contra Costa Fire.

The fire, which was on Beatrice Court, was accidental in nature, firefighters said. It was caused by repair work being done in an RV inside the building, firefighters said.

Mop up continues and people are still being advised to avoid the area.