A motorist has been badly hurt after a car flipped and smashed through a railing in a serious rollover near Perth Airport.
The vehicle crashed about 7am on Wednesday, coming to a halt on Abernethy Road after travelling south on Tonkin Highway.
The sole occupant suffered critical injuries.
Emergency services rushed to the scene, with major crash investigators examining the wreckage.
The southbound slip lane from Tonkin Highway to Roe Highway is closed, while the left lane of Abernethy Road eastbound is also blocked.
Traffic is heavy on both roads, with motorists urged to avoid the area and expect delays.
Anyone who witnessed the crash or has information is urged to contact Crime Stoppers on 1800 333 000 or make a report online here.
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