HAYS, Kan. (AP) – Authorities are investigating a hit-and-run fatality in western Kansas.

The Salina Journal reports 22-year-old Dylan Weiser was struck and killed May 15 by a driver who left the scene of the crash south of Hays. Weiser’s body was found in a ditch.

The Ellis County Sheriff’s Department said in a release Friday that the department is seeking the public’s help in finding the driver.

Authorities believe Weiser was walking south along the west edge of the road when a southbound vehicle struck and killed him. The release says automotive debris was found at the scene, but authorities haven’t determined a specific make or model of the vehicle. It’s also unknown who was driving.

Weiser lived in Thornton, Colorado, but was formerly from LaCrosse.