Five young males aged between 17 and 25 died during a 12-week period, with six in total under 25 since mid-May.
Ministry of Education head of sector enablement and support Katrina Casey said the ministry has been supporting Massey Primary School after the death during the school holidays.
"A traumatic incident team met the school's management team on Monday," she said.
"A counsellor and the principal of Massey High also attended. A plan has been developed and students and staff who may need extra support identified.
Canterbury had the highest number of suicides during 2015/16. Photo / Coronial Services of New Zealand
"Massey High staff will support the primary school this week before high school students start on Thursday.
She said the ministry is also working with Child Youth and Family and others to ensure the right support is in place for the schools and community.
According to the latest Coroner's figures on suicide, released last year, there were eight provisional suicide deaths for people aged 10 to 14 between July 2014 and June 2016.
The number included five males and three females, but accounted for the lowest rate (2.72) of suicide per 100,000 people for any age group during the time period, statistics show.
The child was the youngest recorded suicide since the Coronial Services Unit started collecting data in 2007.
This week, clinical child and adolescent psychologist Dr Sarah Watson advised parents to listen if their child was in distress and to take their concerns seriously.
"Take the time to really listen ... [and for harmful thoughts or behaviour] that arise out of distress. You want to be talking about the reasons for the distress and what to do about it.
