"We are in the very early stages of our enquiries and we are trying to piece together the circumstances surrounding this stabbing. Officers have spoken to a number of people at the club, but I know there are more people out there who need to tell us what they saw. We are particularly keen to hear where the offenders went next. We are working hard to find those responsible and we will do all we can to bring them to justice."
More top news
A hot and sunny start to this week. A cloudier, wetter, windier and cooler finish. Kerrie has the detail for the next few days
Nominations are now open for the 2017 ITV Fundraiser of the Year – part of the Daily Mirror Pride of Britain Awards.
Information on our warmest June spell since the 1970's and how the North West differed from the UK statistics.