He said there were no casualities but the esimated loss is more than $60,000 pa'anga.

When the firefighters arrived at the school a block of four classrooms was on fire. "Two classrooms were already engulfed and our firefighters could not save them but managed to save the remaining two and prevented the fire from further spreading to a neighbouring government flat, which was located just 5 metres away from this classroom block," he said.

The Deputy Fire Commissioner said the origin of the fire seemed to have begun from the top or ceiling in one of the classrooms.

"At this stage we have nothing that would suggest anything suspicious but our investigation continues to determine the cause," he said.

The two razed classrooms belonged to the students of Class 3-4.

Tonga Side School is a government school that teaches Class 1 to Form 2 levels.