(WUSA9) -- Virginia State Police issued a Senior Alert on behalf of the Halifax County Sheriff's Office for 91-year-old John Thomas Foster.
Foster was last seen on Wednesday walking at the intersection of Burch Elmo Road and Highpoint Road in South Boston, Va., say police. He was wearing a gray shirt, gray pants, and black shoes.
Foster is further described as a white male, 5 feet 9 inches tall, and 165 pounds with blue eyes and gray hair, say police.
They say Foster suffers from a cognitive impairment and the disappearance poses a credible threat to his health and safety.
Please call the Halifax County Sheriff's Office with any information regarding his whereabouts at 434-476-3334.