NEWTON COUNTY, Ark. - Authorities and volunteers are searching for a missing Baton Rouge man who never returned from his hike in an Arkansas national park Thursday.

National Park Service officials said 67-year-old Clinton "Preston" Smith went hiking on the Hemmed-in-Hollow trail along Buffalo National River, and he was reported missing Saturday morning.

Smith was last seen wearing blue jeans and a black shirt. Park rangers and local law enforcement are currently searching the area and reportedly found his vehicle at the Hemmed-in-Hollow trailhead.

Anyone with information on the whereabouts of Clinton "Preston" Smith is urged to contact Buffalo National River's Emergency Dispatch at (888) 692-1162.