Police are looking to identify the man pictured after a man was robbed and assaulted by a group of men in Brighton.
It happened in Crawley Road and Wolseley Road at around 8.20pm on Monday, August 21.
They took the 23-year-old's phone and car keys, before fleeing the scene.
An investigation was launched and three men from Bognor Regis have been arrested.
A 31-year-old man on suspicion of robbery and possession of a Class A drug; a 45-year-old man on suspicion of robbery and possession of Class A and B drugs; and a 34-year-old man on suspicion of robbery.
They have all been released on conditional bail while enquiries continue.
Anyone who recognises the man in this picture, or has any information that could help the investigation, is asked to contact police online or via 101, quoting serial 1410 of 21/08.