HARRISON – Police are looking for a 22-year-old University of Maine student who has been missing since Sunday.

William Warren was spending the summer in Harrison, but lives in Lisbon, according to a Cumberland County Sheriff’s Department news release.

According to his family, Warren has a history of depression. He’s stayed at local shelters in the past.

Anyone knowing where Warren might be should call Det. Brian Ackerman at 774-1444, ext. 2215.

Warren is 5-feet-9-inches tall, weighs 135 pounds, and has brown hair and eyes.