A bouncer was punched and headbutted in a Newcastle city centre bar.
The incident happened at 10.25pm on Friday, March 29 at the Centurion Bar near Newcastle Central Station.
A group are reported to have threatened and then attacked a bouncer in the foyer of the venue.
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British Transport Police officers are now investigating the assault and have released a CCTV image of a man they believe may have information that could help with their investigation.
Anyone who recognises him is asked to contact BTP by texting 61016 or by calling 0800 40 50 40 and quoting reference 737 of 29/03/19.
Alternatively, call Crimestoppers anonymously on 0800 555 111.
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