Tamil Nadu: Ammonia Gas Leak Kills Seven at Tiruvallur Seafood Unit
Seven migrant workers died and dozens were hospitalized following an ammonia gas leak at a seafood export unit in Tiruvallur, Tamil Nadu. The incident occurred at St Peter's Paul Seafoods Exports Private Limited, prompting the Chief Minister to order a high-level inquiry into the cause and safety lapses.
Key Highlights
- Seven migrant workers tragically died due to the ammonia gas leak.
- Dozens of workers, primarily women, were hospitalized with breathing issues.
- The incident occurred at St Peter's Paul Seafoods Exports in Tiruvallur.
- Tamil Nadu CM ordered a three-member committee to probe the incident.
- Migrant workers from Assam, Odisha, and Jharkhand were among those affected.
- The leak is suspected to have originated from the processing unit's refrigeration system.
A tragic ammonia gas leak at a seafood export unit in Tiruvallur district, Tamil Nadu, on Sunday, June 21, 2026, has resulted in the deaths of seven migrant workers and the hospitalization of dozens more. The incident took place at St Peter's Paul Seafoods Exports Private Limited in Kannigaipair near Periyapalayam.
Initial reports varied regarding the number of casualties, with some early accounts from The Hindu stating no fatalities and other sources reporting two deaths. However, subsequent and corroborating reports from multiple credible news outlets, including The Times of India, The Indian Express, Scroll.in, Deccan Herald, NDTV, India Today, and Telangana Today, confirmed that seven workers died during treatment. Many of the affected individuals were guest workers, predominantly women, from states like Assam, Odisha, and Jharkhand, who were residing on the factory premises.
Around 120 guest workers were reportedly staying at the factory, and many were inside their accommodation as it was a holiday when the leak occurred. The ammonia leak is believed to have originated from the seafood processing unit's refrigeration or processing system, spreading rapidly across the premises. Workers exposed to the gas experienced severe breathing difficulties, dizziness, irritation, and some even suffered bleeding from the mouth and nose.
Emergency services swiftly responded to the crisis, rushing 67 affected workers to nearby medical facilities. Of these, 46 were admitted to Vels Hospital and 21 to Venkateshwara Hospital. Nine of the most critically ill patients were subsequently transferred via ambulances to the Government Stanley Medical College Hospital in Chennai for specialized care.
Tamil Nadu Chief Minister C. Joseph Vijay promptly ordered the formation of a three-member inquiry committee to thoroughly investigate the incident. This committee comprises the Director of Industrial Safety and Health, the Member Secretary of the Pollution Control Board, and the Additional Director of Public Health. The committee has been instructed to submit an interim report within 24 hours and a final report within three days to ascertain the exact cause of the valve failure and to probe potential safety lapses at the export unit.
The Chief Minister also announced an ex-gratia payment of ₹2 lakh each to the families of the deceased and directed State-wide inspections of hazardous industrial units. Ministers, including Public Works Minister Aadhav Arjuna and School Education Minister Rajmohan, were dispatched to hospitals to oversee treatment efforts, working in coordination with the District Collector and the district administration. Governor Rajendra Vishwanath Arlekar also expressed deep sadness and offered condolences to the bereaved families and prayers for the speedy recovery of the injured.
The incident highlights critical concerns regarding industrial safety protocols and the welfare of migrant workers in industrial units across the state. Police have registered a case, and further investigations are underway to determine accountability.
Frequently Asked Questions
What happened in Tiruvallur, Tamil Nadu?
An ammonia gas leak occurred at St Peter's Paul Seafoods Exports Private Limited, a seafood processing unit in Kannigaipair near Periyapalayam, Tiruvallur district, Tamil Nadu.
How many people were affected by the gas leak?
Seven migrant workers died, and dozens more were hospitalized due to the ammonia gas leak. Reports indicate around 67 workers were initially rushed to hospitals, with nine critically ill patients transferred to Chennai for specialized care.
When did the ammonia gas leak occur?
The incident occurred on Sunday, June 21, 2026.
What action has the government taken regarding the incident?
Tamil Nadu Chief Minister C. Joseph Vijay has ordered a three-member inquiry committee to investigate the cause of the leak and any safety lapses. The government also announced ex-gratia payments for the deceased's families and directed state-wide inspections of hazardous industrial units.
Who are the affected workers?
The affected individuals are primarily migrant workers, many of whom are women, from states such as Assam, Odisha, and Jharkhand, who were staying on the factory premises.