A SERIOUS crash has closed Great Eastern Highway westbound in Ascot.
The crash is believed to have involved a car hitting a fence.
Three crews from St John Ambulance were on the scene, and a spokeswoman said a male patient had been transported to Royal Perth Hospital under lights and sirens.
More patients are believed to be on the scene being treated by paramedics.
More to come.
— Main Roads WA (@Perth_Traffic) September 21, 2017