WORLAND, Wyo. (AP) — Authorities say a 39-year-old man was killed in a single-vehicle rollover crash just south of Lovell.

The Wyoming Highway Patrol says Louis Muckley, of Basin, was killed after he lost control of his pickup truck on U.S. Highway 310 early Friday. The truck left the road on a slight curve and rolled multiple times.

Muckley, who was not wearing a seatbelt, died at the scene.

Investigators are trying to determine if alcohol played a role in the crash.