An Opelousas man died early Saturday when his pickup truck ran off the side of La. 182, north of La. 178 in St. Landry Parish, and struck a cement culvert.

Trooper First Class Stephen Hammons said the St. Landry Parish coroner pronounced Joe Jock dead at the scene.

Jock, 49, was not wearing a seat belt and was thrown from his 2003 Chevrolet truck when he hit the culvert, Hammons said.

Whether Jock was impaired is unknown, but toxicology samples have been submitted to the State Crime Lab for analysis.