Whangārei Area Commander Inspector Maria Nordstrom said investigating police found there was no shooter nor risk to the school or wider community.
The rumour about a shooter was passed onto Whangārei Girls’ High School principal Sonya Lockyer last night by a parent who had been told about it by their daughter.
Lockyer said the school contacted police and the Ministry of Education’s trauma team for advice on what action to take.
Police investigated overnight and found no trace of a planned shooting but stationed themselves around school grounds today to ensure everyone’s safety.
Officers had identified the people behind the rumour and were working with them and their families, Lockyer said.
The day’s events had demonstrated how powerful social media can be as incorrect messages hastily spread, she said.
Police were encouraging people to be mindful of the information shared as it may be wrong.
Nordstrom said misinformation can cause unnecessary alarm to others going about their daily business. Although, she acknowledged police appreciated people’s concerns.