Detectives have released CCTV images and renewed their appeal for witnesses following an armed robbery at the Co-operative store in Clayton-le-Moors.
The incident happened at about 10.45pm on Friday, January 14 when a man entered the store on Pickup Street and threatened staff with a claw hammer.
He then forced open the tills and stole around £2,000 in cash.
The offender is described as a white, around 6ft tall and slim. He was aged mid 20s to early 30s, spoke with a local accent and was wearing a dark jogging top with the hood up.
A dark scarf was used to hide his identity and he was also wearing dark coloured jogging pants and black trainers. He was also wearing black woollen gloves.
DS Simon Upton, of Accrington CID, said: “This was a terrifying ordeal for all the staff and customers who were present when this offence took place. I have no doubt that this male is probably a local man who will now have a significant amount of money at his disposal.
“I am hoping that the CCTV might prompt people to come forward and I urge anybody who witnessed this robbery, anybody who has any information as to who was involved or anybody who saw anything suspicious to come forward.
“Any information no matter how small may help us to identify this person so they can be brought to justice.”
Anyone with information should police on 01254 51212 or Crimestoppers on 0800 555 111.