UMATILLA COUNTY, Ore. — A truck and skeletal remains found in the Columbia River have been connected to a 26-year-old missing-person case from Washington state.

KOMO-TV reports a couple who went scuba diving last week in Umatilla County, Oregon, reported they discovered a submerged Ford Ranger with Washington state license plates.

Umatilla County sheriff’s dispatchers confirmed the truck was connected to a missing-person case out of Prosser, Benton County, from 26 years ago.

The missing person was Maynard Koen, born in 1911 and reported missing in August 1993.

It took about two hours for crews to get the truck out of the water. The Sheriff’s Office says they found skeletal remains and a driver’s license issued to Koen.

The remains will be sent to the Oregon State Medical Examiner’s Office for further identification.