Police are appealing for information following an armed robbery at Berkeley post office on Tuesday afternoon.
According to police two men, allegedly armed with knives, attended the business in Winnima Way around 3.15pm, and demanded cash from the attendant.
The men are believed to have fled the scene in a grey Audi sedan with an amount of cash.
No one was injured in the incident.
Detectives are on scene and a crime scene has been established.
The attendant was interviewed, forensic officers fingerprinted the scene and police were given CCTV footage.
The attendant told passers-by that he was "alright" following the robbery.
Anyone with information is urged to contact Lake Illawarra police on 4232 5599 or Crime Stoppers on 1800 333 000.