Police are investigating a fight involving a large number of people in Norwich.
Officers were called to Peterson Park, in Peterson Road, at approximately 6.30pm on Tuesday September 5.
Three teenage boys and a woman in her 40s were arrested on suspicion of affray and have been released from custody but remain under investigation.
Officers are keen to speak anyone who witnessed the incident or anyone with information. They can contact PC Craig Middleton-Keen at Mile Cross Police Station on 101 or call Crimestoppers anonymously on 0800 555 111.