Photo: RNZ / Cole Eastham-Farrelly
Four young people have been arrested and police are seeking others after a brawl in the streets of Kawerau in Bay of Plenty.
A person has been critically injured and has been taken to hospital.
Officers were called to the corner of Plunket and Islington Streets about 12.35pm after reports of an altercation.
Eastern Bay of Plenty police say they need the public's help in tracking down others who were present at the time of the fracas.
Area manager investigations Detective Senior Sergeant Paul Wilson said they were asking anyone who hasn't been spoken to already to get in touch.
He said a "serious assault" had taken place.
Anyone with information should call 105, quoting file number 240621/4014.
They could also visit Kawerau Police Station or share information anonymously by calling Crime Stoppers on 0800 555 111.