TWO crashes are causing havoc for peak hour traffic north and southbound on the Kwinana Freeway this afternoon.
A crash southbound near Thomas Road in Casuarina is causing heavy congestion.
The Freeway has been reduced to one lane and drivers are asked to exercise caution.
Northbound, the right lanes are blocked on Mill Point Road in South Perth.
There is some congestion and drivers should expect delays.
Elsewhere, drivers have been warned to look out for a chair on Roe Highway near Berkshire Road.
There is also heavy congestion on the Mitchell Freeway northbound after Hutton Street following a crash.