ALDA, Neb. (AP) — Authorities say a Michigan man died after the big rig he was driving ran across a county road and struck several objects as it left Interstate 80 in south-central Nebraska.

The Hall County Sheriff’s Department says the accident occurred around 6 p.m. Tuesday, just off the eastbound exit ramp at the South Alda Road interchange. The truck didn’t halt at the bottom of the ramp. It ran across South Alda, striking a tree, a sign and a power pole before stopping. The driver was trapped in the wreckage, which soon was engulfed by flames.

The Hall County Sheriff’s Office identified the driver as 57-year-old Dennis Lambertson, of Jackson, Michigan.

The accident is being investigated.