WA Police are investigating the robbery, which occured about 8.20pm at the sandwich shop along Albany Highway, a spokeswoman said.
‘One pointed a firearm at two customers who were sitting at a table and at employees behind the counter,’ she said.
‘The other offender was holding a knife and pointed this at a female staff member behind the counter.
‘The first offender stayed with the customers and forced them to kneel on the ground.
‘The other walked behind the counter and threatened the female employee with a knife, demanding she open the till.’
The offenders left after getting the cash.
Anyone who can assist in the investigation should call Crime Stoppers.