The Oklahoma State Bureau of Investigation and the Pawnee County Sheriff's Office are searching for a missing man.
42-year-old Richard Horn has been missing from Cleveland since July 22.
Investigators say he is in poor health and needs medication.
Horn is described as 5'7" and weighing 128 pounds. He has brown hair and blue eyes.
Anyone with information can contact the OSBI at 1-800-522-8017 or the Pawnee County Sheriff's Office at 918-762-2565.