Two members of staff were assaulted after a man entered their Northampton store and forced his way behind the kiosk to steal items, police have reported.
The robbery took place at the Co-op store in Semilong Road at around 10.20am on Tuesday, April 13.
Police have released an image of a man, who they believe may have information about the robbery.
Muslim woman left in tears after Kettering McDonald's wrongly puts bacon in burger
Eight pumps tackling large fire at Corby recycling centre
Remembering the drought of 1976 across Northamptonshire in pictures from the archive
Corby man Thomas Hall, 21, who had severe mental health issues, had taken spice before 'wholly unacceptable' delay in CPR
Free festival for all taking place in Corby tomorrow
A spokesperson for Northamptonshire Police said: "Officers investigating the incident believe this man may be able to assist with their enquiries and are appealing for him, or anyone who may recognise him, to get in touch."
Anyone with information is asked to call Northamptonshire Police on 101 quoting reference number 21000203337 or, alternatively, Crimestoppers can be called anonymously on 0800 555 111.