A driver has been taken to hospital after his truck carrying fruit rolled on the Kwinana Freeway in Bertram.
It happened just before 11pm on Tuesday near the Mortimer Road turnoff.
The driver suffered serious injuries and was conveyed by ambulance to Royal Perth Hospital.
Thousands of apples have been left scattered across the scene.
A cleanup operation is now underway.
WA Police are investigating what caused the crash.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000.
Mission Australia celebrates 25 years of supporting young people through Mandurah Reconnect program
'Mad Eagles fan' wins $6 million Lotto prize
Mandurah woman loses everything in house fire
Gift card scams surge past $1 million prompting urgent warning from Consumer Protection
Secret Harbour by-election attracts record 16 candidates
Major party candidates locked-in for looming Secret Harbour by-election
Comet Bay Primary to offer full-time kindy from 2027
North Dandalup crash claims life of driver
Date set for Mandurah's Town Ward Extraordinary Election