Ulsan, South Korea—Two industrial plant operators died and four others sustained severe respiratory trauma after a sudden toxic gas leak inside a heavy manufacturing complex. The lethal chemical release occurred during routine maintenance operations at a chemical processing unit.
Volatile gas accumulated rapidly within the enclosed subterranean valve chamber before workers could activate safety ventilation systems. Plant sensors triggered regional emergency sirens across the sprawling industrial park.
Specialized hazardous materials response teams from the national fire agency deployed automated containment units to seal the leaking pipeline valve. Emergency responders wearing full chemical protective gear entered the hazard zone with oxygen respirators.
Crews extracted two unconscious technicians from the confined space and administered immediate field resuscitation. Medical examiners confirmed both workers succumbed to acute toxic inhalation before reaching a regional trauma center.
Four additional plant technicians suffered severe lung damage and chemical burns while attempting to rescue their colleagues. Paramedics rushed the wounded operators to specialized university hospital units, with two listed in critical condition.
Labor ministry investigators and police forensic units cordoned off the entire manufacturing complex to initiate a joint safety inspection. Preliminary engineering reviews indicate a corroded flange gasket on a high-pressure feed line likely triggered the rupture.
Corporate executives announced an immediate indefinite shutdown of the affected processing wing pending a comprehensive federal safety audit. Industrial safety unions renewed urgent calls for stricter oversight of aging chemical infrastructure across the region.
Investigators continue to analyze gas dispersion logs and metallurgical samples recovered from the ruptured valve assembly.
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