COTATI (CBS SF) – The Cotati Police Department is asking the public to help its search for a 15-year-old girl missing since Monday night.

Bella Chamberlin was last seen about 9:15 p.m. and left her residence with an unknown male. She may be in the Modesto area, police said.

READ MORE: Despite Fines, Pleasant Hill In-N-Out Remains Defiant Over Customer Vaccine Verifications

Chamberlin is described as white, about 5-foot-1, 110 pounds, with long red hair in a pony tail.

READ MORE: Mariposa Sheriff To Announce What Killed Family On Hike In Sierra National Forest

Bella Chamberlain was last seen in Cotati on January 18, 2021. (Cotati Police Department)

Bella Chamberlain was last seen in Cotati on January 18, 2021. (Cotati Police Department)

Anyone with information that can assist the search is asked to call 911 or contact Cotati police at (707) 792-4611.

MORE NEWS: UPDATE: Judge Denies Bail for Los Gatos Mom Accused of Hosting Drunken Teen Sex Parties

© Copyright 2021 CBS Broadcasting Inc. and Bay City News Service. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.