UPDATE: Shortly after 9 a.m., London police reported he had been located and was safe.
The London Police Service is looking for a 27-year-old man reported missing on Wednesday.
Police say he was last seen around 3 p.m. Wednesday in the area of Adelaide Street and Marshall Street, between Dundas and King streets.
He was last seen in a grey winter jacket with black trim and a fur-lined hood, blue jeans and black running shoes, police said.
Police and his family are concerned for his welfare and they ask anyone with information on his whereabouts to contact them.