Police have identified the man whose body was found on the grounds of Katikati College earlier today.
It has been confirmed the body was that of an adult and not a young person as police originally reported.
Police Sergeant Scott Merritt confirmed the man's death was not related to an event held for students at the school the evening before.
The man's next of kin were being contacted and the death will be referred to the coroner.
Merritt said the police supported the school's decision to close for the day.
"We believe this was in the best interests of the students," he said.
The body was taken away in a hearse this morning.
The Katikati volunteer fire brigade were called in at 6.45am and cordoned off the entrance to the school field to keep students out.
"There are loads of access ways around the college, so brigade officers are stopping students at all the different gates," a brigade officer told a reporter at the scene.
Neither parents who gathered at the school gates nor a spokesperson for Katikati College wanted to comment at this stage.
A Facebook post from the school said students were to stay at home if they were not on their way to school and students who did arrive would be supervised in the primary school hall.
A spokeswoman for Katikati Primary School said there were no college students on site earlier this morning.
A father of two boys who attend Katikati College said he was on his way to drop his eldest son off to school when he heard the news.
The father, who did not want to be named, said parents were emailed at 8.40am to say the school was closed due to "unforeseen circumstances".
He said he would spend today comforting both of his boys at home. "I am not sending them back to school until everything has settled," he said.
He planned to keep his boys busy for the day as a distraction from the sad news. "A busy mind is a better mind," he said.
A mother said her son went to the college. She said he and his year had their school social last night.
"I don't know if it is connected, but bloody hell, how scary. My boy is turning 14 this year."
WHERE TO GET HELP:
If you are worried about your or someone else's mental health, the best place to get help is your GP or local mental health provider. However, if you or someone else is in danger or endangering others, call police immediately on 111.
OR IF YOU NEED TO TALK TO SOMEONE ELSE:
• 0800 543 354 (0800 LIFELINE) or free text 4357 (HELP) (available 24/7)
• YOUTHLINE: 0800 376 633
• NEED TO TALK? Free call or text 1737 (available 24/7)
• KIDSLINE: 0800 543 754 (available 24/7)
• WHATSUP: 0800 942 8787 (1pm to 11pm)
• DEPRESSION HELPLINE: 0800 111 757 or TEXT 4202