A serious crash involving a vehicle rollover is causing major traffic delays on a busy Perth highway, with motorists urged to avoid the area.
Emergency services are attending the crash on Tonkin Highway southbound near Abernethy Road at Perth Airport.
The left lane has been closed at the Roe Highway exit by Main Roads incident response team, while the left lane of Abernethy Road eastbound is also blocked by emergency services.
Major crash investigators are on the scene.
Traffic is heavy on Tonkin Highway and Abernethy Road, with motorists advised to avoid the area and find an alternative route.
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