Detectives are hoping a man dressed as a giant penis may help police trace the person responsible for a serious attack on a night out.

The man wearing the distinctive fancy dress outfit was part of a group present at the scene when the 26-year-old victim was assaulted in Leeds in the early hours of Sunday morning.

The victim was left needing an operation for his injuries, which included a shattered shin bone, dislocated and cracked knee and torn ligaments, and will need further surgery, West Yorkshire Police said.

The attack happened at the junction of Albion Street and Boar Lane at around 3am on Sunday.