Two men robbed a shop in Wellingborough after threatening an employee with a meat cleaver.
The incident happened between 11.35am and 11.45am on Sunday, September 20 at the One Stop Shop on Swinburne Road.
One of the men threatened staff with a meat cleaver, forcing them to empty money from the till into a black bag, while the second man remained standing outside the store.
Police have received CCTV images from the incident.
Anyone with information should contact police on 101 or Crimestoppers anonymously on 0800 555111.