Bac Ninh, Vietnam—The leak started inside the main processing wing on Sunday morning. Two workers were performing maintenance on a storage tank when the seal failed. A cloud of hazardous gas flooded the immediate area. Both men were overcome before they could exit the room.

Other employees heard the alarm and sealed the wing from the outside. Firefighters equipped with breathing apparatus entered the facility to retrieve the victims. They were declared dead upon reaching the plant infirmary. No other workers reported symptoms of exposure.

The factory manager confirmed that the equipment was undergoing its quarterly check. An internal investigation is looking into why the safety valves did not trigger automatically. The plant has been ordered to stop all production by the local safety board.

Inspectors from the Ministry of Industry and Trade arrived to examine the site. They are checking the logs for the past three shifts. The chemical involved is a common industrial agent that can be lethal in enclosed spaces. Any exposure can cause immediate respiratory failure.

Families of the deceased are meeting with company representatives tonight. The firm has promised to cover all burial costs and provide compensation. Labor inspectors are checking if the workers were provided with the required breathing equipment. Safety protocols are under a intense spotlight.

This factory is a major employer in the Bac Ninh industrial zone. News of the deaths has caused widespread concern among the plant’s workforce. Some staff have refused to return to their stations until an independent audit is completed. The plant remains empty and locked.

Local hospitals were alerted to the situation but were not needed for further casualties. The toxic cloud was contained within the building structure. Environmental teams tested the air quality around the perimeter and found no risk to the public.

The investigation into the failure of the tank seal continues. Detectives are questioning the supervisor responsible for the maintenance schedule. The facility will stay closed until the safety board certifies the plant is secure.