BOWBELLS, N.D. (AP) — Authorities have identified a worker who died at an oil rig in northwestern North Dakota.

The Burke County Sheriff’s Office says 35-year-old Coby Thibodeaux of Eunice, La., died about mid-day Saturday when a payloader backed over him. Authorities have called the death accidental.

The sheriff’s office, North Dakota Highway Patrol and state medical examiner’s office are investigating.