A high school in Northland briefly went into lockdown on Monday after a student was allegedly assaulted.
Police said the incident took place around 11:20am at Kerikeri High School, when a student reportedly made threats to another group of students before leaving the school and returning with someone who does not attend the school.
"The student and the male have then allegedly assaulted another student at the school," said Senior Sergeant Peter Robinson.
"During this assault a knife has fallen on the ground. At this stage, there's no evidence to suggest it was brandished at all."
Snr Sgt Robinson said a short time later the pair then left the school.
The student involved in the alleged assault was later found at a nearby property on Cobham Rd, and police are still looking for the other male, he said.
"The student who was assaulted was not badly injured and did not require medical assistance."
The school went into lockdown for a brief period as a precaution but that has now been lifted, Snr Sgt Robinson said.
He said police are now working closely with the school "to ensure the safety of all in the school".
"While our enquiries are in their early stages, police want to reassure the school community that we are speaking to the victim, several witnesses and the students involved to establish exactly what has taken place."