Industrial Tragedy in Shiga: Two Migrant Workers Suffocate After Being Buried by Cement Inflow

Victims were operating 12 meters underground when structural sealing material was discharged; authorities launch criminal negligence probe

Industrial Tragedy in Shiga: Two Migrant Workers Suffocate After Being Buried by Cement Inflow

A catastrophic workplace accident claimed the lives of two young Vietnamese nationals in Kusatsu City, Shiga Prefecture. The incident occurred on Tuesday morning (26th) at a regional public works project focused on water infrastructure. The two men were instantly overwhelmed by a sudden discharge of heavy liquid cement during a technical operation meant to seal and decommission an obsolete agricultural water pipeline.

The local police department identified the victims as Lu Thanh Van, aged 27, and Nguyen The Phuong, aged 25. Both individuals resided in the Taisho-ku district of Osaka City and were employed in Japan under the government's official Technical Intern Training Program. Investigators established that the team was carrying out maintenance inside a narrow 1.5-meter-wide pipe at a subterranean depth of nearly 12 meters when the concrete mass engulfed them.

Emergency Response, Post-Mortem Findings, and Regulatory Investigation

The timeline indicates that the technicians were completely trapped inside the pipeline by the fast-pouring construction compound. While a nearby crew member managed to locate and extract both individuals from the shaft, medical interventions proved unsuccessful. The victims arrived at the emergency trauma center in full cardiopulmonary arrest and were pronounced dead shortly after arrival.

  • Forensic Analysis: Pathologists conducted comprehensive autopsies on Wednesday (27th) to officially declare the biological cause of death, with physical evidence strongly pointing toward severe asphyxiation from cement inhalation.

  • Judicial Review: Law enforcement bodies have officially opened a criminal case regarding potential professional negligence resulting in injury and death, focusing on whether mandatory job site safety guidelines were breached.

Sources: NHK / JNN

Industrial Tragedy in Shiga: Two Migrant Workers Suffocate After Being Buried by Cement Inflow — Gazeta Japan