Police have confirmed a 26-year-old Eaton man died in a fatal crash on Wednesday.
Read more: Car collides with pole in Waroona crash
Around 3.53pm, a white 2018 Kia Rio was travelling north on the South Western Highway.
The vehicle entered the Waroona town site, veered to incorrect side of the carriageway, before crashing into a light pole.
The driver, a 30-year-old woman, sustained minor injuries.
The front seat passenger, a 26-year-old man from Eaton, sustained serious injuries and died at the scene.
Major Crash Officers ask anyone who witnessed the incident, or who have dashcam footage, to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.