Oregon State Police responded to a single-vehicle crash Monday morning in Klamath County.
At approximately 6:21 a.m. police arrived at the scene on Highway 140 East near milepost 16.
The preliminary investigation indicated a Toyota Sienna minivan, driven by Guy Robert Attride, 51, was westbound when the vehicle went off the roadway for an unknown reason, overcorrected back onto the roadway, and rolled several times before coming to rest on its tires.
Officials say Attride was declared deceased at the scene.
The passenger was ejected from the vehicle and transported via Airlink with serious injuries, but has not been identified at this time, according to police.