A woman suffered cuts to her head in a vicious attack in a Liverpool city centre nightclub.
The victim, who was aged in her 20s, was assaulted in Popworld on Wood Street, and suffered cuts to her head in the attack, before door staff intervened.
Police said extensive enquiries had been made since the attack to trace those responsible, which took place at around 3.50am on Sunday 8 December.
An image has now been released of a woman who police would like to speak to in connection with the incident.
*UPDATE: Police have since confirmed the witness has come forward*
Detective Constable John Causton said: "We'd like to speak to this woman to gather any information about this incident. She is potentially a witness to what happened.
"I'd also ask anyone else in Pop World that night who saw the incident or knows who was responsible to come forward.
"Thankfully the victim was not more seriously injured but this was a shocking attack, which has left physical and psychological scars. We're determined to find the person who did this, and your information may be vital.
"We work closely with licenced premises across Liverpool to ensure that people can enjoy the nightlife of the city safely. Help us keep it that way."
You can pass information via @MerPolCC, 101 or Crimestoppers anonymously on 0800 555 111, with reference 19100716939.
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