The freeway is blocked north of Hepburn Ave after a vehicle rollover.
One person is believed trapped in the wreckage of the crash, which was reported just before 5.30am this morning.
Emergency service officers are working to clear the scene but all north-bound lanes remained closed this morning.
In a separate incident on the Kwinana Freeway south near the intersection of Anketell Rd, two trucks and a car have reportedly collided.
The incident was reported about 5.50am.
The left lane in the southbound lane is closed.More to come…