A man from Kent, who has been missing since the end of January, was last seen in Brighton.
Sussex Police issued a public appeal for help finding the man, 23-year-old Arthur Williams.
The force said: “Police are concerned for missing man Arthur Williams who is believed to be in Brighton.
“Arthur, 23, went missing from Kent on (Tuesday) 30 January but was last known to be in Brighton on Tuesday (20 February).
“He is white, 5ft 7in, with short brown hair and was last seen wearing a black and grey jacket, blue jeans and black shoes.
“If you have any information please report online or call 101 quoting reference 557 of 21/02.”