Police are asking for the public’s help to try and trace a 63-year-old man from Polegate.
Brian Imison, of Black Path, was reported missing by his landlord just after noon after he failed to attend a pre-arranged meeting.
Police have made contact with Brian’s family, who are not local, but they have not heard from him for a couple of weeks.
Mr Imison is described as white, with short greying hair.
It is not known what he was wearing when he left his address.
A police spokesperson said: “We are concerned for Brian and would like him to make contact with either the police or his family so we can ensure he is safe and well.
“If anyone thinks they know of Brian’s whereabouts, or have seen him locally, then we would ask them to call us as soon as possible on 101, quoting serial 0539 of 27 March.”