There are 21 victims including 7 officers who were treated for poisoning.
Six of the victims were unconscious when they arrived at the hospital and their conditions are not yet known.
The incident is under investigation and took place at an apartment building in Perth Amboy.
The entire building at 185 Fayette Street was evacuated and is closed at this time.
No one is inside the home except from emergency personnel, officials said.
New Jersey Poison Control Center Executive and Medical Director Dr. Diane Calello: “Severe weather often results in illness and deaths from hypothermia and carbon monoxide (CO) poisoning, as well as exposures to a variety of substances.”
Carbon monoxide is known as the “silent killer” as it has no smell, colour or taste.
Dr Calello added that at this time of year, two of the most common forms of carbon monoxide poisoning are from car exhausts, generators and ageing heating systems.
More to follow…