The department said preliminary findings showed that the eight workers from a contractor company were hired to conduct an eight-day fumigation exercise for pest control at the factory from Jan 21.

“However, on Wednesday, one of the workers returned to the fumigation site with a colleague to take gas readings in one of the factory buildings.

“Both experienced vomiting, breathing difficulties, and fainted after leaving the premises. They were rushed to a nearby hospital for treatment,” it said in a statement today.

The department said one of the workers was pronounced dead at the hospital on Thursday, while the other remains in critical condition in the intensive care unit.

It also noted that the doctor who treated the victims suffered breathing difficulties and a sore throat after performing CPR on them.

“Six other workers who showed early symptoms of toxic gas exposure were allowed to return home but remain under medical observation,” it said.

The department said the areas that underwent fumigation at the factory have been ordered shut and a prohibition notice on the use of the hazardous chemical methyl bromide has been issued until the investigation is complete.

DOSH has also directed the employer to conduct an internal investigation to determine the cause of the incident, implement corrective measures, and present the case to the department.

“A follow-up investigation will be conducted, including reviewing relevant documents and recording statements from identified witnesses.

“A subsequent inspection of the employer’s premises will take place once remedial and preventive actions have been implemented,” it said.

DOSH also warned of legal action under Section 15(1) of the Occupational Safety and Health Act 1994 if violations are found. Under this Act, employers face a maximum fine of RM500,000 if convicted.