Regional Investigations Unit Detectives are appealing for information in relation to an attempted armed robbery that occurred in Wattleup on Monday.
At around 2:50pm a man entered a retail store on the corner of Wattleup Road and Rockingham Road.
He produced a firearm and demanded cash from a staff member.
Empty handed, the man ran from the store in a westerly direction, across the southbound lane of Rockingham Road and entered a vehicle parked in the northbound lane.
Investigators are seeking witnesses and dashcam footage of the offender running across Rockingham Road and of any parked vehicles near the offence location.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or to make a report online at crimestopperswa.com.au.