A teenage shop assistant was threatened with a knife following a robbery at a supermarket in Greenock.
The incident occurred at the USAVE convenience store on Lynedoch Street around 7.30am on Friday.
The suspect threatened the 19-year-old shop worker before making off with a four-figure sum in cash.
The man is described as white, between 5ft 6in to 5ft 10in height, of stocky build and is aged between late 20s to early 40s.
He was wearing white trainers, grey jogging bottoms, a black jacket with hood up and a white paper Covid-type face mask.
Detective Sergeant Martin Clark, Greenock CID, said: “Officers are checking CCTV and carrying out local enquiries but are keen to hear from anyone who may recognise the description of the man or who has any information that may assist the investigation.
“We believe the suspect was in the area of Lynedoch Street, Bank Street, Regent Street and Lyle Street prior to the incident and so we are appealing for anyone was in the area, for example delivery drivers, between 7am and 7.30am to get in touch.
Information can be passed to police via 101. Please quote reference number 0517 of Friday, February 3 when calling. Alternatively, Crimestoppers can be called anonymously on 0800 555 111.