State Education Director Datuk Jame Alip said the block consisted of four classrooms, headmaster's office, the school's senior assistant offices, clerk office, surau, teachers' toilet, car garage and 120 chairs, among others.
He said the department has set up a committee to investigate and assured that the incident will not affect the learning process of 309 pupils taught by 25 teachers.
Jame said the department will provide necessary items like stationery, tables, and chairs, among others to the school.
Sabah Fire and Rescue Department Public Relations Officer Mohd Affendy K. Ramin said 16 firefighters including volunteers from Kg. Tingkalanon here and two fire engines were dispatched when the department received a distress call at 10.50pm.
He said the fire was brought under control at 11.40pm but that about 70 per cent of the block was destroyed.
He said its initial investigation showed that the school incurred losses of about RM50,000.
The cause of fire is still under investigation.
On March 3, fire also broke out at SK Pekan Kiulu and destroyed three blocks.
Another school, SK Gadong in Beaufort also lost two blocks to fire that broke out at 3.14pm that same day (March 3).
In the SK Tempasuk fire two blocks comprising four classrooms were destroyed along with a library, Internet Access Centre, text book storeroom and rehabilitation centre.