A North Canterbury primary school has been rocked after its popular principal died suddenly over the school holidays.
Rangiora Borough School principal Alan John Sutton died of a heart attack while in Ashburton on Sunday at the age of 66.
He had been principal, and previously deputy principal, for more than 20 years.
The school posted on its website that Sutton, from Woodend, will be remembered as a "well-respected and loved work colleague, husband, father, educator and community member".