Two Sheffield betting shops were targeted by armed raiders on the same night.
The Coral on Halifax Road, Birley Carr, and Ladbrokes on Jeffcock Road, in High Green, were robbed within half an hour of each other last Wednesday, April 3.
Three men entered the Coral at around 7.40pm and threatened staff with weapons, believed to be a firearm, a knife and a spade.
They stole cash from the safe and tills and left in a silver Volkswagen Golf, which sped off and turned into Avisford Road.
Then later, at 9.10pm, on Jeffcock Road, three men entered Ladbrokes and threatened staff with a firearm.
Money was taken from the tills and the robbers left in a silver car.
There were no injuries sustained by anyone in either incident.
Police are appealing to the public for any information on either incident, or for any witnesses.
Anyone with information should call 101, or call Crimestoppers anonymously on 0800 555 111, quoting incident numbers 1,003 or 1,126 of April 3.