Police are searching for a 66-year-old man diagnosed with cognitive impairment who was last seen in Dallas. The Dallas Police Department said Alexander Ngoke, a Black male, was last seen around 11:50 p.m. on Oct. 10 near the 5000 block of Pineland Drive in Dallas. Watch NBC 5 free wherever you are WATCH HERE WATCH HERE Dallas Police said the man's disappearance is believed to pose a credible threat to his health and safety. Ngoke was last seen wearing a cream long-sleeve shirt, gray shorts and no shoes, police said. Anyone with information is asked to contact the Dallas Police Department at 214-671-4268. #nbcdfw #crimewatchdallas