Police are searching cellphones for video footage of a fight which claimed a 15-year-old boy's life.
Kelston Boys High student Stephen Dudley died in hospital after what was believed to be a pre-arranged fight following his junior rugby team training on Thursday night.
Two boys, aged 15 and 17, have been charged with assault.
Detective Inspector Bruce Scott said police would wait until they had reviewed cellphone footage of the fight before deciding on any further charges.
He said police had received more than 10 cellphones from witnesses to the fight.