Hyundai Motors researcher fatal accident... Cause of death was carbon monoxide poisoning = South Korea

The cause of death of researchers who died while testing vehicles at Hyundai's Ulsan factory last month has been determined to be carbon monoxide poisoning.
The Ulsan Metropolitan Police Agency announced on the 8th that the National Forensic Service had notified them that the inquest results for the deceased researchers all stated that the cause of death was "carbon monoxide poisoning."
As a result, police plan to focus their investigation on whether the exhaust and ventilation systems were working properly and whether safety regulations were being followed.
On the 2nd of this month, police conducted searches at Hyundai Motor's Ulsan plant and the Namyang research center, where some of the researchers are based, and seized vehicle test-related materials and vehicle test facilities (chambers).
The police are also preparing to summon safety officials as witnesses during the investigation and to reconstruct and examine the vehicle testing conditions at the time of the accident.
Separate from the police, the Ministry of Employment and Labor has been conducting special industrial safety inspections of Hyundai Motor's Ulsan factory since the 29th of last month, and has been investigating the safety and health regulations based on the Industrial Safety and Health Act.
Prior to this, an accident occurred on the 19th of last month at a vehicle testing facility in the electrified vehicle quality division of Hyundai Motor's Ulsan plant, killing three researchers.
It is confirmed that the researchers were involved in the accident while conducting vehicle performance and idling experiments in an indoor space.