7 guests at Ohio hotel in critical condition after hazmat situation

The hotel in Marysville, Ohio, was evacuated, police said.

Seven guests at an Ohio hotel are in critical condition due to an apparent hazmat situation, police said. Fourteen people total were treated at the hospital for exposure.

Police responded to several 911 calls Saturday evening of people found unconscious around the pool area of the Hampton Inn in Marysville, Ohio, police said. Marysville is a suburb of Columbus.

One of the calls mentioned an unconscious 2-year-old girl found in the water, according to police.

People were complaining of dizziness and a burning sensation in their throats, police said. Authorities initially said it was suspected carbon monoxide exposure, but Marysville's police chief told Columbus ABC affiliate WSYX that the investigation is ongoing.