( KNZA)--A 38-year-old Valley Falls man has died following a single-vehicle crash Sunday morning in Jefferson County.

According to the Kansas Highway Patrol, the crash happened around 6 a.m. near 170th Street and Coal Creek Road.

The Patrol report says a van driven by 38-year-old Dustin Ogden was turning left from 170th Street onto Coal Creek Road when the vehicle left the roadway about 200 feet south of the intersection.

The van entered a ditch, traveled down an embankment, struck a tree and rolled onto its side.

Ogden was pronounced dead at the scene. The crash report indicates his death was caused by a medical condition rather than injuries sustained in the crash.

A passenger, 49-year-old Nicole Lynn Montgomery, also of Valley Falls, reportedly suffered no apparent injuries.

The Patrol reports Ogden was wearing a seat belt. Montgomery was not wearing a seat belt.