A Dillsburg-area man died when he was thrown from a vehicle during a crash in Cumberland County Sunday night.

Garrett Levi Anderson, 20, of Franklin Township, was pronounced dead at the scene of the crash on Route 15 in Lower Allen Township, according to Charley Hall, the Cumberland County coroner.

He died of multiple traumatic injuries, Hall said.

Anderson was driving north on Route 15, when, for unknown reasons, the vehicle went off the highway and hit a bridge support of the Rossmoyne Road overpass, according to Lower Allen Township Police.

An off-duty state police trooper happened upon the single-vehicle crash and called 911 about 10:30 p.m., police said.

Anderson was not wearing a seat belt and was thrown from the vehicle.

- Reach Greg Gross at ggross@yorkdispatch.com.