(Gresham, OR) -- Police are searching for a missing man in Gresham. Frank Wilson hasn't been seen since Thursday, and could be in need of medical attention. The 68-year-old man has heart problems and diabetes. He is described as being six-foot-one, 235 pound, with brown eyes and short gray hair. He drives a 2003 Ford pickup with a disabled veteran license plate. Anyone with any information is urged to call 9-1-1.