CCTV has been released to help catch a robber who targeted a Warwick shop at knife-point.
Staff were threatened and cash was stolen from the Co-op in Warwick Gates just before 6pm on Friday.
Detective Constable Imran Ghouri of Leamington CID said: "I'd like to reassure residents that incidents like this are rare in the area and thankfully nobody was injured.
"Officers are investigating a number of lines of enquiry to identify the offender, who is described as white, around 6ft tall and of stocky build.
"We are keen to identify and speak with the individual in the CCTV images, who is reported to have left the area on a white bike, as we believe they were in the area at the time and may have important information that could help investigations."
Anyone with any information about the incident is asked to contact Warwickshire Police on 101, asking for DC 1550 Imran Ghouri on extension 4044 or quoting incident number 348 of 26 January.
Information can also be given anonymously to the Independent Charity, Crimestoppers, by calling 0800 555 111 or by visiting their website: www.crimestoppers-uk.org