Police are hunting for a man who tried to rob a petrol station in Hamilton Hill.
The man entered the petrol station on Rockingham Road around 11.30pm on Saturday and demanded money from the attendant while armed with a gun.
He left empty handed.
The man is described as 175cm tall, medium build, light skinned with dark hair and tattoos on his hand.
He was wearing a tie-died t-shirt and knee length blue shorts.
Anyone with information regarding this incident is asked to call Crime Stopper on 1800 333 000 or to make a report online at crimestopperswa.com.au.