Police are investigating a suspicious fire which happened overnight at Indulkana in the State’s far north.

Just before 10.30pm, police received reports the school was on fire.

One classroom has been completely destroyed and damage is estimated at several thousand dollars.

Fire Cause Investigators and local CIB will be attending later today to examine the scene.

If anyone has any information about this matter, they are asked to contact Crime Stoppers on 1800 333 000 or online at http://www.sa.crimestoppers.com.au