Football hooligans who were involved in a clash in a Lincoln pub are being targeted by Lincolnshire Police.
Trouble flared between rival supporters before the Lincoln City and Luton Town match on October 6, in the Ritz pub on the High Street.
Police are appealing for witnesses to come forward as they search for between 20 and 25 football hooligans involved.
Operation Hartford has been launched to ensure that they are identified and arrested.
Furniture and glasses were thrown during the violent disorder and a number of people were physically assaulted when the violence broke out at around 1pm.
Two women were treated in hospital for minor injuries caused by flying glass.
The disturbance also spilled out into the High Street and Firth Road.
PC Andy Pearson said: “Two rival gangs clashed, one from Lincoln and one Luton.
"These are not football fans, they are simply hooligans and it is important that we identify all of the offenders and arrest them as quickly as possible.
“We need anyone who was in the pub or in the area to get in touch and help us with our enquiries as soon as possible.
"What took place was totally unacceptable on a busy Saturday afternoon when families are out trying to enjoy what the city has to offer.
“Over the last three years we have done a huge amount of proactive work to target thugs like this and that work will continue.
"It is essential that we send out a clear message to hooligans – you are not welcome in Lincoln.”
Witnesses can call Lincolnshire Police on 101 with information, quoting incident number 318 of October 8 or Crimestoppers on 0800 555 111.