A pedestrian has been struck and killed by a semitrailer on Interstate 94 in southeastern North Dakota.

The Highway Patrol says the incident happened west of Casselton shortly after 3 a.m. Thursday.

Authorities are investigating whether the pedestrian might have been driving a car that crashed in the interstate median before the incident involving the semi.

The semi driver wasn't hurt but was shaken up emotionally and taken to a Fargo hospital.