Illinois State Police confirm two people died in a semi-trailer crash on Interstate 57 Friday evening.

The accident happened shortly after 5 p.m. in the northbound lanes at mile post 52, south of Marion.

Troopers say a 2015 Volvo truck trailer semi traveled off the roadway to the right for an unknown reason before striking a group of trees.

The driver and passenger, who were both declared dead at the scene, were ejected from the semi.

Identifies of the deceased have not yet been released.