A 23-year-old man was attacked and robbed outside a Brighton nightclub.
He was found lying on the ground at the back of Pasha, in Boyces Street, Brighton, having gone outside for some fresh air.
Detectives have released images of the man suspected of attacking the victim whose mobile phone, wallet and passport were stolen.
The victim suffered facial bruising and cuts and was taken to the Royal Sussex County Hospital, Brighton, for treatment.
He was wearing jeans and a long-sleeved top with a distinctive dragon emblem on the back and front.
The attack and robbery took place at about 2.45am on Saturday 20 August.
Any witnesses, anyone who recognises the suspect or who has information is asked to call Sussex Police on 0845 6070999.