Police are releasing a CCTV image of a man they want to trace in connection with an unprovoked assault inside a Colchester nightclub.

Enquiries to trace the man have so far been unsuccessful and so detectives are releasing a CCTV image and asking the public to provide his name.

A 23-year-old man from Sudbury visiting the town for a friend’s birthday was inside the Liquid and Envy nightclub in Colchester high street at 2.30am on October 6.

While on the first floor stairwell he was elbowed in the face knocking him out. The victim required hospital treatment and surgery to facial injuries.

Anyone with information is asked to contact Pc Jason Munns at Colchester police station on 101 or Crimestoppers on 0800 555 111.