From some videos and photos taken, seem like they were some soil excavation inside the gas pipeline reserve near the ruptured area.

Wonder what's a coincidence that the place where tha gas pipe ruptured is next to an active construction site. Perhaps the soil movement was the caused.

A lot of site workers has no knowledge of any safety protocols need to be carried out while working at sites especially those next to dangerous infrastructures, power line, high pressure pipes etc.,