A school in the Riau province in northern Indonesia was left completely destroyed after a gas pipeline running underneath the building deep in the ground burst and sent huge amounts of pressure upwards.

Footage from February 6 shows the building destroyed, with the roof completely caved in as workers removed furniture from inside.

Additional footage shows the epicentre of the blast, which was still spewing debris and residual mud as underground pressure continued to burst upwards.

Okta Firana Sari, a school worker the witness said, the incident began after the management of Al-Ihsan Islamic Boarding School employed well diggers to find water sources in their grounds.

"When excavators reached around 120 meters on Thursday (February 4) gas burst out of the well to a height of 15 meters," Sari said.

Muddy-flow cement in Indonesia destroyed the boarding school.

The flow of gas and mud at school in Tenayan Raya subdistrict in Pekanbaru, Riau province has now released mud in the form of cement and destroyed school buildings.

Roof collapsed to the floor, unable to withstand the weight of the mud and stones that hit it.

In addition, mud and rocks filled the yard. Piles of mud in the hallway between the study room and the dormitory, up to five meters high.

Okta Firana Sari, a school worker the witness said, the incident began after the management of Al-Ihsan Islamic Boarding School employed well diggers to find water sources in their grounds.

"When excavators reached around 120 meters on Thursday (February 4), gas burst out of the well to a height of 15 meters," Sari said.

In footage filmed today (February 6), school buildings are damaged and school supplies evacuated.

The school has requested government assistance to shut down and deal with the bursts.

According to the sub-district government, this area does have a gas pipeline installation and gas bursts have also occurred before during the search for water sources.