Two people have died after a truck left Great Eastern Highway and rolled at The Lakes early this morning.
A white and red Kenworth prime mover with two trailers was travelling east along Great Eastern Highway.
As it neared Carter Road the vehicle left the road and went down an embankment.
It struck a large tree, causing the truck and trailers to roll.
The 47-year-old male driver and a 47-year-old male passenger both died at the scene as a result of their injuries.
Major Crash investigators would like to speak to anyone who saw the crash, or the Kenworth prime mover travelling in the area prior to the crash.
Anyone with any information is asked to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.