POLICE are investigating an armed hold-up at Apco service station in Kangaroo Flat.
Detective Senior Constable Tony Roberts said the incident occurred at 11.27pm last night.
"A single person, we're not sure if it was a male or female because they were covered up, entered with a knife and demanded cash," he said.
"No one was injured."
Detective Senior Constable Roberts said the female employee complied with demands and the armed robber left the store with a small amount of cash.
Police plan to review CCTV footage today.
Anyone with information should contact Crime Stoppers 1800 333 000.