Officers are growing increasingly concerned for the welfare of vulnerable man Michael Dennington.
The 58-year-old man was reported missing from the Mansfield area on Sunday 31 May.
The attached CCTV image is the last official sighting of him obtained from Kings Mill Hospital as he was leaving at 3.24pm on 26 May.
Michael is described as being of a slim build, 5ft 2 tall with dark brown, short hair. He was last seen wearing grey jogging bottoms, white trainers and a black waist length jacket.
The Missing From Home team have been carrying out enquiries and extensively viewing CCTV. Officers have also been working alongside the force’s specialist search teams who have been conducting searches in the vicinity but so far there have been no indication of his whereabouts.
Michael has links to several of the neighbouring towns and villages including Newark, Selston, Ollerton, Cliptsone, Worksop and Sutton-in-Ashfield, and also further afield in Cleethorpes, Glossop and Derby.
Detective Inspector Stuart Temple said: “We will keep searching and carrying out rigorous enquiries but we are also exploring the possibility that Michael has got into a vehicle somewhere in the vicinity of Kings Mill Hospital, and has left the area.
“We are appealing to anyone who might have seen a gentleman matching his description getting into a car – maybe a taxi between 3 and 4pm on Tuesday 26 May, to get in touch with us, and for anyone who might know anything about Michael, no matter how small, to please provide us with that information.
If you have seen Michael or know where he might be, please call us on 101, quoting incident number 0758 of 31 May 2020. You can also call Crimestoppers anonymously on 0800 555 111.