Lincolnshire Police are seeking information on the man in the CCTV footage (pictured right) after an assault on a woman in Lincoln.
The incident happened at around midnight along Kesteven Street, Lincoln on April 18.
The 20-year-old woman was walking home when a man grabbed her from behind and dragged her away from the street.
He then punched her in the face.
The man is described as white, and of a medium build between 5’10 and 6 foot tall.
He has fair hair, and he was wearing a dark zip-up top and blue jeans.
Anyone with information on the incident, or who recognises the man in the CCTV image, should contact DC Cath Leeman at Lincoln CID on 101, quoting incident number 7 of April 18.