Highway 26 is closed in Washington County on Tuesday afternoon after a crash left at least one person dead, according to authorities.

The Washington County Sheriff’s Office reported the crash at about 3:15 p.m. near NW Dersham Road, which is west of North Plains and east of the Highway 6 junction.

Authorities have not specified how many people or vehicles were involved in the collision.

Oregon State Police said traffic will be impacted until it completes its investigation.

Drivers are asked to find another route.