Update, 5pm: Motorists have been warned of heavy traffic after a three-car crash in Edgewater this afternoon.
Police said those in the three cars are understood to have escaped serious injury in the crash on Ocean Reef Road at about 3.30pm.
Main Roads says traffic is easing after heavy delays followed the crash.
Traffic was reduced to one lane in both directions but all lanes have since been reopened.
Main Roads says traffic is easing along Ocean Reef Road and on the approaches including the Mitchell Freeway ramps, Wanneroo Road, Trappers Drive and Joondalup Drive.