A Mamou man was killed late Tuesday after running his car off a roadway, crashing into a culvert and flipping the vehicle, according to State Police.

Shane Porche, 35, was traveling north on LA 91 around 11:30 p.m. when he veered left off the roadway and crashed, State Police said in a news release. He died at the scene, the release states.

Police said Porche was not wearing a seat belt in his 2003 Dodge car as he traveled along the highway north of LA 368 in Acadia Parish.

Police have submitted a toxicology sample for analysis and are awaiting the results.