A three-vehicle crash in Peru, Maine left two people seriously injured.

The Oxford County Sheriff’s Office says the crash happened around 5 p.m. Monday on Route 108. Two pickup trucks collided head-on, and a third vehicle was involved.

The driver of one of the pickups, 57-year-old Kenneth Roy of Greene, and his passenger, 54-year-old Robert Winson of South Portland, were seriously injured. As of Wednesday, Roy was in stable condition and Winson was in critical condition.

The other drivers and passengers involved were not injured.

The crash is under investigation.