Sussex Police is investigating a late-night robbery at a convenience shop in Hove last night (October 15).
Police said a man entered Tesco Express in The Droveway, Hove, at 9.45pm, and threatened staff with a knife.
He took around £2,000 from the tills and fled the scene, police said.
Officers said nobody was hurt.
The suspect is described as white, and was wearing dark clothing.
Detective Constable Scarlett Millar said; “If you were nearby on Monday evening and saw this man or have any other information, please contact us online or by calling 101, quoting serial 1245 of 15/10.”