Three men in their early twenties, including two brothers, have been killed in a car crash south of Perth.
Kody, 24, and William Bell, 21, and 24-year-old father-of-two Jaziah Thomas all died when their Audi crashed into a Kia on Sixty Eight Road in Baldivis at 5pm on Wednesday.
A fourth man in the Audi is in a serious condition while the driver of the Kia was treated for minor injuries.
Detective Senior Sergeant Adam Matson said investigations were ongoing into what caused the crash.
"The loss of one life on our roads is a tragedy, to lose three ... from the one crash including two brothers, is incomprehensible," he said on Thursday.
Tributes have begun flowing for the three young men, with Mr Thomas' partner saying she had been left broken by the news.
"It still doesn’t feel real and I keep waiting for you to just walk through the door and it breaks me apart to know you're not going to," she posted on Facebook.
"I don’t know how I can live without you, I just want you to come home."
The fatalities bring WA's road death toll to 124.