Transport Minister Phiphat Ratchakitprakarn on Monday ordered an investigation into a scaffolding collapse during the construction of a northern line railway tunnel on Saturday, pledging to blacklist the contractor if operational negligence contributed to the accident.
The incident at the Doi Luang Tunnel site in Chiang Rai occurred while workers were installing waterproofing inside the structure. The collapse left two workers dead and two others injured. Construction has been suspended while authorities investigate.
