The Tennessee Bureau of Investigation issued a Silver Alert early Tuesday morning for a missing man out of Knox county.

73-year-old Thomas Owen Houston was last seen on November 29th at 3:30 P.M. at the Flying J Truck Stop on Watt Road in Knoxville. He was wearing a blue jacket, blue jeans, and a cowboy hat. The TBI says Houston has a medical condition that may impair his ability to return home safely without assistance. Anyone with information is asked to contact the Knox County Sheriff’s office or 1-800-TBI-FIND.