FREDONIA, Kan. (KAKE) - Three people were killed when two vehicles collided head-on and caught fire on a highway in southeast Kansas.

The accident happened shortly before 6:30 p.m. Monday on U.S. 400 about a mile west of the K-39 junction. That's northwest of Fredonia. The Kansas Highway Patrol says a Dodge Ram was heading west when it crossed the double yellow line and hit an oncoming Ford F-150. Both vehicles caught fire and came to rest in the eastbound lane.

The patrol reports all three people involved in the crash died at the scene. 

The driver of the Dodge Ram was identified as 40-year-old Curtis Wilkins, of Cambridge. There were two people in the Ford: 39-year-old Tiffany Bekemeyer was driving, and 18-year-old Randy Lynn Carlisle was her passenger. They were from Aurora, Missouri.

It unclear what caused Wilkins' pickup to cross into oncoming traffic.