Police investigating an affray in Borehamwood are appealing for witnesses and information.
The incident occurred in Shenley Road, between 11.30pm and 11.50pm on Tuesday, November 16.
It was reported that a group of at least six people were involved in a verbal altercation which then turned physical.
Investigator Kay Leverton, from the Hertsmere Local Crime Unit, said: “Our enquiries are continuing at this time to establish the circumstances around what happened.
“As part of the investigation, we are appealing for anyone who saw the incident, or events leading up to it, to please get in touch. Any information at all could assist us moving forward.”
Three men – aged 25, 27 and 29 – have been arrested in connection with the incident and have been released under investigation while enquiries continue.
Anyone with information is asked to please email email@example.com
You can also report information online at herts.police.uk/report, speak to an operator in the Force Communications Room via online web chat at herts.police.uk/contact or call the non-emergency number 101, quoting crime reference 41/89960/21.
Alternatively, you can stay 100 per cent anonymous by contacting the independent charity Crimestoppers on 0800 555 111 or via their untraceable online form at crimestoppers-uk.org.