The agencies include the police, the fire and rescue department, Tenaga Nasional Bhd (TNB), the public works department, as well as local government authorities and the district office.

Subang Jaya police chief Wan Azlan Wan Mamat said that Jalan Persiaran Harmoni had been closed in stages to facilitate the movement of security forces, and would be reopened in stages as well.

“A briefing will be held with all of the agencies involved to conduct investigations and take follow-up action at the scene,” he told reporters at the incident command post today.

Meanwhile, fire and rescue department director-general Nor Hisham Mohammad said his department had begun major work activities including assessing losses to houses and vehicles affected by the gas pipeline explosion.

He said a team had been placed on standby to deal with any possibility of fire.

“We will work with TNB to assess the situation regarding electrical wiring, especially exposed cable… whether the wiring is safe or if further action is needed to enable us to make immediate connections in the area,” he said when contacted by Bernama.

Nor Hisham said the department was also paying attention to the structure of houses that were burnt or affected by the explosion to ensure the safety of the residents involved.

“If they are unsafe or dangerous, we may carry out demolition work, for example, the roofs,” he said.

The department is also mobilising its teams from Melaka, Negeri Sembilan, Kuala Lumpur, and the headquarters to speed up the investigation process and facilitate the return of affected residents to their homes as soon as possible.

A check by Bernama in the area found that dozens of residents affected by the incident had gathered as early as 7.30am for information about the progress and status of their homes, and to await their turn to return home for essential items and important documents.

Also seen entering the area affected by the fire today were members from the Bukit Aman tracker dog or K9 unit and the forensic investigation unit.

As of yesterday, a total of 364 people from 74 families affected by the fire had been evacuated to relief centres at the Putra Heights Mosque and the Subang Jaya City Council multipurpose hall.