The identity of a man who received life-threatening injuries after being hit by a truck in Beckenham yesterday remains a mystery.
Police are trying to identify the man, who is believed to be about 26 or 27 years old, after he was hit on William Street about 8.55am.
The man is undergoing surgery in Royal Perth Hospital and remains in a critical condition this morning.
He has no identification on him and is described as being average height and bald with a solid build and fair skin.
He was wearing XL size black sports-style shorts, a women's black chiffon top with a boat neck from TEMT and a zippered grey hoody.
He was not wearing shoes.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000.