CCTV images have been released that show a man wanted in connection with a vicious robbery in Wellingborough.
Police officers want to trace the man in connection with the incident that happened at the Co-op store on Farm Road, Wellingborough.
An offender made off with cash after pointing a knife at a staff member and forcing her to empty a till.
At around 10.20pm on Monday, 15 August, the offender approached the staff member, who was standing outside the shop.
He pulled out a knife, pointed it towards her and instructed her to go into the store and empty the till.
The offender then made off with the cash and some scratch cards in a bag, in the direction of Bacon Road, Wellingborough.
Detectives are looking to trace the man pictured in the images wearing a red, hooded top.
Anyone with information can contact Northamptonshire police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.