Tonga police say they have arrested 2 students after more incidents of fighting involving rival schools.
The rivalry extends back many years, with the fighting often resulting in damage and injuries.
Efforts are being made by various agencies to discourage the fighting but students from Liahona High School and Tonga College clashed on Tuesday this week.
Police say the students are being held in custody until investigations are completed.
They are to be charged with causing a disturbance after damaging a police vehicle.