The Denison Police Department is asking for your help in locating a missing teenager. 16-year-old Madilyne Janelle Bishop was last seen, on Monday, at Denison High School. The white female is about 5-feet 2-inches tall with brown eyes, long and straight brown hair. The teen is believed to be with a man, in his mid-20s, that she knows and may have met online. He may be driving a green, two-door vehicle.

Authorities say an Amber Alert was not issued because the teen apparently left voluntarily, she was not abducted. If you have any information about Bishop’s whereabouts, call Denison police at (712) 263-3195, or Crawford County CrimeStoppers at (712) 263-4050.