An assault near the Sugar Hut nightclub has led the police to search for a man photographed in the area at around the same time.
A 22-year-old man was punched and kicked by two men in William Hunter Way, Brentwood, after leaving the club at 1.30am on January 19.
The victim was left with cuts and bruises to his head and face.
Both suspects are described as white, aged 21-22, of a skinny build and around 6ft tall.
One of the men was wearing jeans with a grey top over a white shirt.
Anyone who recognises the man in the picture or can provide any other information should contact PC Thomas Buchanan at Brentwood Police station on 101 or ring Crimestoppers anonymously on 0800 555 111.
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