Three suffer from asphyxiation due to coal heater in north-central Vietnam
Doctors diagnosed the victims with carbon monoxide poisoning
6 die of suspected gas asphyxiation at home in southern Vietnam
The cause of death is believed to be asphyxiation from carbon monoxide (CO) inhalation
Three family members dead, another in coma due to suspected asphyxiation in Ho Chi Minh City
Police believe that the victims died of asphyxiation from carbon monoxide (CO) inhalation
Man dies in sleep, wife in critical condition due to coal heater in north-central Vietnam
Police say the wife who fell unconscious is in critical condition
Asphyxiation kills three construction workers in north-central Vietnam
Two of the workers died en route to the hospital