A man armed with a hammer robbed a store in Bomaderry overnight, police said.
The man entered the store on Meroo Road around 7.15pm.
He threatened a female shop attendant and demanded cash. A second staff member approached the counter and the man fled the location with an amount of cash.
No-one was injured during the robbery.
Police attended the store and conducted an extensive search of the surrounding area, but the man was not found.
He was described as having a tanned complexion, around 175-180 centimetres tall with a skinny build. He wore a black-coloured balaclava, dark-coloured hooded jumper, long dark pants, white joggers and gloves.
Detectives are appealing for help from the public to find the man. Anyone with information is urged to contact Crime Stoppers on 1800 333 000.