A PSNI spokesperson said: “Brian, aged 47 years old, was last seen in the Holly Lane area of the city at approximately 5pm on Thursday, 26th October 2023.
“He is described as being approximately 5’7” tall, of a stocky build and with ginger hair, which is shaved shorter than the photo of him (attached) depicts.
“He was also clean shaven when last seen.
“Brian was wearing a grey T-shirt and grey jeans last Thursday. Given the continuous wet and cool conditions, police are increasingly concerned about his wellbeing.
“Police are appealing to anyone who may have seen Brian, or might have any information in regards to his whereabouts, to please get in contact with police on 101, quoting reference number 1599 of 26/10/23.
“We would also ask residents of, and business owners in the Caw, Maydown, Gransha and Strathfoyle areas to check their properties and outbuildings for any sign of Brian.”