Police were called to St Teresa's Primary School this morning regarding a suspicious fire that was discovered at 10.20pm last night, 1 December.
Today Police have conducted a full scene examination with the assistance of Fire Safety officers.
The building, a converted 6 x 9 garage, was used as a recovery reading room and school storage shed. This has been extensively damaged.
Police seek any information relating to sightings of anyone in and around the school last night and in the area the fire was discovered.
Detective Sergeant Ross Tarawhiti, Hornby Police Station, phone 344 0661.