Nine people were taken to the hospital in the northern part of the Denver metro area on Wednesday afternoon after getting sick from exposure to high levels of carbon monoxide. That's according to the South Adams County Fire Department, which said in a social media post that first responders went to the home where it happened at 12:46 p.m.

Adams County

The home is located in Commerce City near 69th and Olive Street, and fire officials said they responded to a "carbon monoxide alarm."

After the home was evacuated, investigators began looking into what the source of the high level of CO is.

Normal levels of carbon monoxide in a home can be anywhere between 5 and 15 parts per million. CO detectors will start to go off at about 35 parts per million.

See Full Page