A man has been arrested after a knife robbery at the Lincolnshire Co-operative store on Queen Elizabeth Road in Lincoln on Tuesday night.
Police were called to the shop at around 8.40pm on February 11, after a report of a robbery in progress where staff were being threatened with a knife.
Officers attended the scene and within 10 minutes arrested a 31-year-old local man.
The man is currently being questioned by police.
Lincolnshire Police officers thanked staff and customers at the store for contacting the police so quickly while the robbery was in progress.
Anyone who witnessed this incident on Tuesday who has not spoken to police is asked to call 101, quoting incident number 364 of February 11.