William Gaston, 83, of Blissfield, was last seen driving his truck on Thursday afternoon. (RCMP)

RCMP are seeking the public's assistance in locating a missing 83-year-old man from Blissfield.

William Gaston is in relatively good shape, but he does require medication for some health conditions, Const. Eric Anderson stated in a news release.

Gaston was last seen Thursday at about 3 p.m., driving his truck along Route 8 near the Green Bye Road.

He enjoys the outdoors, especially being out in the woods, said Anderson.

Gaston is described as being between five-foot-eight-inches and five-foot-10 inches tall, with a slightly heavy set build, balding grey hair and glasses. He walks with a cane.

His truck is a navy blue 2000 GMC Sierra with a veteran's licence plate, WP 498.

Gaston was last seen wearing dark jeans, a long sleeve shirt, and a baseball cap with an Air Force logo on the front.