Kwinana Freeway northbound is closed after a body was found early Thursday morning.
It is believed the body was hit by a car near the freeway flyover at Canning Highway around 5.30am.
The exact circumstances leading up to the crash is not yet known, but the man has since died as a result of his injuries.
The Kwinana Freeway northbound lanes are currently closed between Leach Highway and Canning Highway.
It is advised that motorists avoid the area and seek alternate routes.
Man charged over alleged cruelty towards German Shepherd in Baldivis
Calls for improved safety after three major crashes on Forrest Highway in West Pinjarra
Rockingham Flames crowned 2026 NBL1 West champions
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit