Authorities continue search for missing Pleasant Hill teen with special needs

PLEASANT HILL, Calif. (KGO) -- Concern is growing as the hours pass with no sighting of a missing 15-year-old girl with special needs from Pleasant Hill.

Jenna Graves was last seen at Alhambra High School in Martinez Thursday.

The teen has the mental function of a 10-to-12-year-old child.

She has a distinctive scar on her neck and tends to wear heavy makeup and dark clothes.

Police think she took a bus to the Concord BART station.