CCTV images have been released of a man wanted over an attack in Chesterfield which left another man with a broken nose.
Officers investigating the incident believe the man may hold vital information about the attack near Einstein's in Corporation Street at around 2.30am on Saturday, May 19.
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A 26-year-old man was left with a broken nose after being punched in his face.
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Witnesses or anyone with information should call PC Becky King at Derbyshire Police on 101, quoting reference 18000227976.
Crimestoppers can also be contacted, anonymously, on 0800 555 111.