Bristol, Tennessee Police say they are looking for a hit-and-run driver.
The accident happened Tuesday afternoon in the 300 block of Old Thomas Bridge Rd.
Police said the pedestrian was walking in the eastbound lane. According to witnesses, a westbound vehicle crossed the center line and struck the pedestrian.
The pedestrian suffered serious injuries and was transported to Holston Valley Medical Center by a medical helicopter.
The driver of the vehicle did not stop, according to officers.
Anyone with information should call the police department at 423.989.5600, 423.764.TIPS (8477) or by email at firstname.lastname@example.org.