He said the offending student was undergoing a disciplinary process before the Board of Trustees while the other affected students were being provided with counselling services.
The father of one of the pupils frightened, who wanted to remain anonymous, said he was angry, upset and worried to hear about the incident.
He said he had spoken to school management todayand was glad affected students were offered counselling.
He said his daughter was scared after the incident and other parents he'd spoken to also wanted consequences.
"All the parents are hoping the student will not be allowed back at school. If an adult did that there'd be some serious consequences.
"I think it's a form of bullying and I've got no tolerance for that."
The incident is the third of concern at schools in Rotorua and the wider Bay of Plenty in two weeks.
Last week footage of a Kaitao Intermediate schoolgirl repeatedly kicking another in the head circulated online.
Then, at Edgecumbe College, police and the Ministry of Education were alerted after a student wrote a threatening message on a whiteboard on Tuesday.