The exit to South Street southbound has been closed.
Main Roads have issued a warning for people travelling on Kwinana Freeway.
There is smoke covering both directions of the freeway at South Street, Leeming.
Emergency services are on site.
Main Roads said to use extreme caution if you're in the area.
#KwinanaFwy both directions at #SouthSt, Leeming - EXTREME CAUTION ADVISED - smoke over road #perthtraffic
— Main Roads WA (@Perth_Traffic) January 8, 2018
Perth to Bunbury train service returns
Missing woman found safe and well
Community fed up with teenage hoons terrorising Halls Head oval
Southern suburbs electrician claims $1.8 million Lotto win
Works continue on Pinjarra's Munday Avenue extension
Halls Head support worker charged with historic child sex offences
Severe thunderstorm warning cancelled for Mandurah, Bunbury
Fortnightly red bin collections to remain in the City of Rockingham after council rejects motion
Rate rises on the way for Rockingham, Mandurah ratepayers