A man threatened staff at a convenience shop at knifepoint before escaping with £600 in cash on Sunday night.
Police are investigating the robbery at the One Stop shop in The Causeway, Godmanchester between 9.25pm and 9.40pm on Sunday March 26.
A man with a knife entered the store and demanded the tills be emptied. He left the shop with approximately £600 on a bicycle and turned right towards Godmanchester centre.
The man is white and approximately 6’. He was wearing a dark hooded jacket, blue jeans and a black back pack. He had a piece of purple cloth around his face and neck.
Anyone with information is asked to call police on 101, or Crimestoppers, anonymously, on 0800 555 111.