Fatal Subway Construction Collapse at Sinansan Line in Seoul
Dec 17, 2025
On December 18, 2025, a tragic collapse occurred at the Sinansan Line subway construction site near Yeouido Station in Seoul, South Korea. Seven workers were initially trapped and later rescued; however, one fatality was reported.
Incident Details:
- Location: Sinansan Line construction site, near Yeouido Station, Seoul
- Date: December 18, 2025
- Casualty: One pump truck operator from a subcontractor was killed
- Initial Impact: Seven workers trapped and subsequently rescued
- Project: New railway linking Seoul's Yeouido and Siheung and Ansan areas
Investigation:
On December 22, 2025, the Seoul Southern District Prosecutors Office, the Seoul Metropolitan Police Agency, and the Seoul Regional Employment and Labor Office held their first joint meeting to discuss the investigation direction.
Focus Areas:
- Violations of the Serious Accidents Punishment Act
- Violations of the Occupational Safety and Health Act
- Determining cause and responsibility for the major disaster
- Preventing recurrence of similar accidents
Authorities raided POSCO E&C (the general contractor) and its subcontractors to gather evidence and conduct a thorough investigation into the incident.
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