Firefighters Monday were working to extinguish a fire in a commercial building in the Irwindale area.
The fire was reported about 10:35 a.m. in the 1400 block of East Arrow Highway, near Live Oak Lane, according to the Los Angeles County Fire Department.
Arriving firefighters called for a second-alarm assignment of additional personnel to be sent to the area. Video from the scene showed flames and smoke shooting through the roof. Crews worked to keep the flames from spreading to other units in the building.
Arrow Highway was closed between Rivergrade Road and the San Gabriel River (605) Freeway as a precaution, and motorists were advised to use alternate routes, according to the Irwindale Police Department.