Colorado firefighters say nine people were taken from a family home in Commerce City on Thanksgiving Eve after carbon monoxide levels inside reached a dangerously high concentration.

"Once we got inside, our alarms went pretty high. Some of the highest we've ever seen," said firefighter Nick Bundy.

CBS

A neighbor said three of those who were ill were children, including a baby with cerebral palsy.

"Nice people," said Esmerelda Jacquez, who lives on the other side of the duplex. She described the family as African immigrants. The mother of the family asked Jacquez if she smelled anything amiss as the concentration of carbon monoxide rose.

"She came and told me if I had smelled in this house, and I said no," recalled Jacquez.

But soon, the children were sickened and coughing. The f

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