DIAMOND BAR, Calif.—A sport utility vehicle has struck and injured several people—including at least two children—outside a suburban Los Angeles elementary school. One is listed as critically injured.

Los Angeles County fire Inspector Sam Padilla said firefighters have been called to Maple Hill Elementary School in the town of Diamond Bar, east of Los Angeles.

He says it appears a car struck three people outside the school Wednesday. Two were moderately injured, and the other is listed as critical.

Televised news reports showed an adult and two children being treated. One child was to be airlifted to a hospital.

A black sport utility vehicle was up an embankment near a sidewalk.