Xin Xin Liu, News9.com

KINGFISHER, Oklahoma – The Kingfisher Police Department has issued a silver alert for a 76-year-old woman who has been missing since Monday afternoon.

Police say Mary Copeland was last seen in Kingfisher at 2 p.m. She was possibly wearing black slacks and a hot pink t-shirt.

According to police, Copeland was driving a white, 2003 Ford Explorer Sports Pickup with Oklahoma license plate 305ASG.

Police say Copeland had a doctor's appointment in Oklahoma City at 3:45 p.m. The doctor's office is possibly located at 2700 North Rockwell Avenue.

According to family members, Copeland has borderline dementia.

Anyone with information about Copeland's location is encouraged to call Kingfisher police at (405) 375-4674 immediately.