Two men armed with a knife and crowbar escaped with cash after holding up staff in a Barnsley shop.
They struck at Costcutter, Fish Dam Lane, Monk Bretton, at 9.15pm last night.
Police said the duo had their faces covered during the raid.
Anyone with information should call South Yorkshire Police on 101 quoting incident number 1,054 of April 13.
Crimestoppers can also be contacted on 0800 555 111.