A five car pile-up on the the Kwinana Freeway southbound in Jandakot on Monday has been cleared.
Main Roads advised at 3.48pm that all lanes were again open.
The Main Roads website reported that southbound traffic along Kwinana Freeway remained backed up to Leach Highway while Roe Highway westbound traffic was backed up to South Street
Police received an emergency call about 2.30pm after the freeway crash between Roe Highway and Berrigan Drive exits.
The accident partially blocked the right and left left lanes, causing vehicles to use the left emergency lane as a detour.
St John Ambulance arrived at the scene, but there were no injuries reported.
Fire crews were initially delayed by the backed-up traffic.
