Police say they are becoming increasingly concerned for Jonathan (Jonny) McCobb.
Police Derry City and Strabane say: “Jonny is described as being 41 years old, 5’ 8” tall, medium build with short and receding dirty fair hair.
“He was last seen in the Waterside of the city on the July 27 however may have taken a train or bus to Belfast.
“It is currently not known what Jonny was wearing.
“His family have not been in contact with him since Sunday and are concerned for his welfare.
“If you have seen Jonny or have any information to assist Police and his family locate him, please call 101 quoting reference 2063 of the 29/07/24.”