Several young people were assaulted, and others were racially abused. One victim suffered a broken cheekbone and was taken to hospital.
Investigating Officer, PC John Cleverly of Local CID, based at Abingdon police station, said: “We are appealing for witnesses following this assault and racial abuse on a number of victims. We would like anyone who was at Buscot Weir and saw this incident to come forward".
“We would be particularly keen on hearing from anyone who may have video or audio footage of this incident which could help us with our investigation".
“Anyone with information should call 101 asking for Thames Valley Police quoting reference 43160198758”.