A man has been the victim of a 'vicious, unprovoked assault' in a Norwich city centre street.

Norfolk police are appealing for any witnesses to the robbery which happened in Princes Street, near Tombland, between 3:50am and 4am on Saturday.

A man in his late teens was walking alone along Princes Street when he was approached by two men and assaulted. They punched him until he fell to the ground before kicking his head and upper body, demanding money. The victim handed over his wallet before passing out. He then made his way to Tombland where he collapsed again and was helped by members of the public.

DC Mike Cox, from Norwich CID, said: 'This was a vicious, unprovoked assault and I would like to hear from anyone who witnessed the incident or has information concerning it, allowing us to bring the offenders to justice as quickly as possible.'

DC Cox can be contacted on 101 or alternatively call Crimestoppers anonymously on 0800 555 111.