Thursday night, nine people from Seatac were transported to a hospital because they had been intoxicated with carbon monoxide.

According to The Associated Press, carbon monoxide fumes from a taxi parked in a garage home caused the accident. The car was left running for several hours.

Three of the people were in a critical condition.

King County sheriff's Sgt. John Urquhart said that a woman and her two kids went to pay a visit to one of their neighbors. When they arrived there, no one answered. Being worried, they called the police.

Unfortunately, the three officers who came to check the house and found lying on the floor a man, woman and their son, started feeling ill from the fumes.

Later, all nine persons were transported to Harborview Medical Center in Seattle. The three people who were lying in the house were in the worst condition, said Urquhart.

The three officers were out of the danger, said spokeswoman Susan Gregg-Hanson.

According to The Associated Press, another spokeswoman Alisha Mark said that three of the victims would be transferred to Virginia Mason Medical Center in Seattle because that was the only place with a hyperbaric chamber.

These hyperbaric chambers help re-oxygenate the blood.

The Virginia Mason Medical Center treated about 62 persons thanks to these chambers.