The Costa Mesa Fire Department arson unit is investigating the cause of a weekend fire at a commercial property on West Baker Street, authorities said Monday.
Firefighters responded to a structure fire in the 1100 block of West Baker Street at 8:05 p.m. Saturday, according to a news release.
The blaze started next to the loading dock area under a 20-foot-tall metal awning and had spread to the back wall of the building when fire crews arrived.
