UPDATE, 7.50am: The crash has been cleared but traffic is still heavy heading into the city.
EARLIER: A VEHICLE has rolled and several cars have crashed on the Kwinana Freeway in Baldivis bringing traffic to a crawl heading into the city this morning.
The crash was reported about 5.30am near Kulija Road.
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READ NOWTraffic is blocked in both lanes northbound and motorists are advised to avoid the area.