The Kwinana Freeway northbound has reopened following a truck fire in Baldivis.
The fire started around 11.45am on Wednesday near the Mundijong Road exit ramp forcing the closure of the freeway for about an hour.
It has since reopened but the left lane remains closed along with the Mundijong Road exit ramp.
Main Roads WA says the fire has now been extinguished.
Traffic is heavy back to Safety Bay Road.
Emergency services are on site.
Wanted woman known to frequent Mandurah, Rockingham, West Pinjarra areas
Waikiki Beach Hotel to go ahead after liquor licence approved
Man found critically injured outside Baldivis pub
Dawesville man charged with 38 child sex offences
Mandurah land owners reminded to prepare properties for upcoming fire season
Winning $2.5 million Lotto ticket sold in Bertram
Shark advice issued for White Hills Beach
Mayor reassures community after 13 trees removed from old King Carnival site
State Government invests $5 million to help restore Peel-Harvey Estuary