Concern is held for the welfare of a missing man, Kevan Datson of Yangebup, who was last seen at 4pm today on Saturday near the Mandurah foreshore.
Mr Datson is 68-years-old and is described as 152cm tall, light-skinned, white hair and suffers from dementia.
He was last seen wearing a dark blue windcheater, baggy black jeans and blue slip-on shoes.
Anyone who may have seen him or knows of his whereabouts are asked to contact Police on 131 444.