The Washington State Patrol’s Major Accident Investigation Team announced Friday it’s investigating a fatality collision involving a passenger vehicle and an unoccupied bus in route to Canada.

The collision occurred westbound Interstate 90 just east of state Route 18 around 5:50 a.m. today, March 22.

According to a media release, a vehicle became disabled in lane one shortly after the bus approached and made a lane change before striking the vehicle.

The driver of the passenger vehicle was pronounced dead on scene and the passenger was transported with serious injuries.

Detectives are looking at all aspects leading up to the collision and are seeking additional witnesses who may have information.

If you know anything or know someone who does, email or call Detective Russ Haake at 425-401-7717, russ.haake@wsp.wa.gov or Detective Sgt. Jason Kraus at (425) 870-4598, jason.kraus@wsp.wa.gov.