Police are hunting two men who robbed the 7-11 service station at Argenton early this morning.
Detectives have released CCTV images of the hold-up, in the hope someone will be able to identify the pair.
They can be seen walking around the store, before one pulls a knife on the attendant and demands money.
He then bizarrely pretends to threaten his accomplice, before they leave with cash.
Anyone with information is being urged to contact Charlestown police or Crimestoppers.
