Just before 8.30pm on Sunday, the 19-year-old man drove to Northville Road, at Barnsley, to deliver a pizza.

Police have been told that when he arrived he was confronted by two men who were armed with a firearm.

The men demanded money before stealing his bag, containing a small amount of cash.

They fled and allegedly fired a shot in the air while running. No one was injured.

Police were alerted and officers from Lake Macquarie Local Area Command attended and conducted a search of the area with assistance from the Dog Unit.

Investigators are appealing for public assistance to identify and locate those involved.

The first man is described as Caucasian, aged in his mid-20s, about 180cm tall, with a medium build and a lip ring.

The second man is Caucasian, aged in his early 20s, about 175cm tall and with a slim build.

Both men were wearing dark hooded jumpers.

Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000.