Amirudin said the findings will be presented to the Cabinet before being made public.

“The written report was ready yesterday, but we were unable to present it (to the Cabinet) as it was a public holiday.

“We will make it public after presenting it to the Cabinet, as we have to follow the process. We will present the technical and criminal aspects of the matter,” Utusan Malaysia reported him as saying.

On May 27, Selangor police chief Hussein Omar Khan said the police investigation, which looked into possible negligence or sabotage, had been completed, but they were waiting for the occupational safety and health department (DOSH) to finalise its findings.

On June 3, Amirudin said the technical investigation, led by DOSH, would cover pipe integrity, ground movement, and whether nearby activities exerted pressure on the pipeline.

The explosion during the fire saw flames shooting up more than 30m high and temperatures reaching 1,000°C.

It took firefighters nearly eight hours to extinguish the blaze, which left a 10m-deep crater, measuring 21m by 24m.

The explosion destroyed 81 homes, with structural damage exceeding 40%. Another 81 homes were partially damaged, 57 affected but not burned, while 218 unaffected.