Police “increased their presence around the school” yesterday after further threats by external students on social media, Davis said.
Staff and involved whānau have been working “tirelessly to contain the situation”.
“These measures are in place to ensure our young people remain safe on their journey home.”
Davis asked parents to speak to their children and “reiterate the importance of not leaving school without permission”.
It is “vital” that students did not put themselves in potentially dangerous situations by engaging with external groups and leaving school grounds during the day, he wrote.
“We also ask that if parents have further information pertaining to the incidents that they contact our senior leadership team.
“The safety of our students is our absolute priority, and we thank you for your continued support and vigilance.”
Police have been approached for comment.
Last Friday, police were sent to Point Chevalier, near Western Springs, to stop an alleged planned fight between students.
At least three police vehicles, including a van, were seen as students headed home from school.
A police officer was also stationed on the corner of Great North Rd and Premier Ave.
Police confirmed they were present after social media suggestions of a planned fight between students from several high schools.
“Our school community officer has been liaising with schools concerned,” the spokesperson said.
“No students showed and pleasingly there are no issues to report.”