Police officers in Sheffield are searching for a man who disappeared from the Northern General Hospital.
Steven Kirby, from Sheffield, was due to be seen by doctors when he vanished.
The 47-year-old was last seen at 3.15pm on Monday.
A South Yorkshire Police spokeswoman said: “He hasn’t been seen or heard from since and officers are concerned for his health and wellbeing.
“Steven was last seen wearing a grey hoody and dark coloured trousers.
“He is white, approximately 5ft 8ins tall and of a slim build.
“He has green eyes and short brown hair with a patch of hair on the top of his head.”
Anyone with information on his whereabouts should call South Yorkshire Police on 101.