3 injured in commercial building explosion in California industrial area

Blast injures 3 in Calf. industrial area

SIMI VALLEY, Calif. — California fire authorities say an explosion has injured three people at a business in a Simi Valley industrial area.

Fire spokesman Ron Oatman says Simi Valley firefighters responded to a police call at about 1:15 p.m. Thursday.

Oatman says business in a half-mile radius are being evacuated. The blast appeared to have punched a hole through the building’s roof.

Officials say three people have suffered minor injuries and firefighters are searching for a fourth person who has not been accounted for.

The cause of the blast is under investigation.

Simi Valley is west of Los Angeles.