Two people are in hospital and one has been arrested after a stabbing that briefly plunged Hamilton high school St Paul's Collegiate into lockdown on Friday afternoon.
Police confirmed to Newshub the assault in front of the school on Hukanui Rd, in the suburb of Chartwell, occurred shortly before 3:30pm and they were called to assist St John Ambulance.
In a statement to Newshub, St Paul's Headmaster Ben Skeen said police were dealing with it and all students and staff were safe.
"Our school counselling team is available for any individuals who may have been affected," he said.
St Paul’s Collegiate on Friday evening told parents in a letter that the stabbing was an "isolated family harm event".
A student at the school told Newshub an air raid-like alarm went off at around 3:25pm and the doors to the classrooms were all closed.
The student said they had heard there had been an attack and were held in their classroom for around seven minutes before being allowed to leave.
Police said two people have been transported to Waikato Hospital with serious injuries.
Enquiries into the incident are ongoing.