A pizza delivery man was robbed at knife-point in Reservoir about 8.45 pm last night.
The man was delivering a phone order to Daventry Street and parked his car opposite the address when he noticed a man in the driveway of the premises.
When he got out of his car four males, who were thought to have been hiding nearby, ran towards him.
One of the males produced a knife and threatened the victim with it.
The man who had been in the driveway also came over and joined the others.
The victim handed over his phone, wallet, money pouch, car keys and the pizza he had with him.
The bandits then got into his car and drove away.
Anyone with any information is asked to contact Crime Stopers on 1800 333 000 or the website at www.crimestoppers.com.au