Detectives are investigating a shop raid in Sheffield in which staff were threatened by two men armed with knives.
They struck at McColls on Barnsley Road, Sheffield Lane Top, at around 8.55pm on Sunday, February 25.
South Yorkshire Police said the robbers had their faces covered during the raid and fled with cash.
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Anyone with information should call South Yorkshire Police on 101 and quote incident number 1,011 of February 25 or Crimestoppers on 0800 555 111.