Police arrested a man following a report a doorman was assaulted in St Helens town centre in the early hours of Monday.
A report was received at around 2.50am on Monday that the 40-year-old man had been punched and kicked on Westfield Street. He sustained grazing to his arms and was taken to hospital for assessment.
A 24-year-old man from St Helens was arrested on suspicion of Section 47 assault. He has since been released under investigation.
Detective Constable Kate Hawthorne said: “This was a sustained and unprovoked attack on a man who was simply trying to do the job he is paid to do.
“We know the area would have been busy at the time of the incident, and we are asking anyone who saw any part of the incident to contact police. Any information could prove vital to pour investigation.”
Anyone who witnessed the incident or saw anything suspicious that could help is asked to contact Merseyside Police social media desk via Twitter @MerPolCC or Facebook Merseyside Police CC. You can also call 101 quoting incident reference 19100284883 or contact the independent charity Crimestoppers anonymously, on 0800 555 111 or via their online form at: https://crimestoppers-uk.org/give-information/give-information-online/