A 22-year-old man had his jaw broken when a fight broke out at a shisha bar in Swiss Cottage.
The victim was punched outside Mia Lounge in Avenue Road oat around 11pm on July 23. Police arrested a 22-year-old man six days later.
He was quizzed by police and bailed to return pending further investigation.
Anyone with information is asked to call Camden Police on 101 or anonymously through Crimestoppers on 0800 555 111.
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