Police are renewing their appeal for witnesses to come forward after a fight in Crawley involving 50 youths.
Seven people were arrested on Sunday evening (July 27) and have been released on police bail while the investigation continues.
More than 20 calls were received by police as the youths clashed in Dorsten Square, Bewbush.
There were reports of baseball bats and stones being used as weapons.
Two police officers were attacked, suffering minor injuries.
Two people were struck by a car.
District police commander Chief Inspector Justina Beeken said: “I appeal for anyone in the area to come forward if they witnessed the event, as I ask all residents of Crawley to report crimes to the police.
“I will not tolerate this type of behaviour in Crawley.
“We are working with our partners in Crawley Borough Council and from other agencies to tackle the issues that have caused this incident. We are appealing for calm and for members of the community to assist us in resolving any tensions.”
Cllr Chris Oxlade, cabinet member for community engagement at Crawley Borough Council, said: “A lot of positive work takes place in Bewbush and the neighbourhood has a great sense of community - we won’t allow the minority to jeopardise this for the majority.”
If you witnessed Sunday’s incident or you have any information about the background to it or those involved, please call 101 or email email@example.com quoting serial 1628 of 27/07. Alternatively, you can call the independent charity Crimestoppers anonymously on 0800 555 111.