DRAPER, Utah — Fire crews evacuated dozens of toddlers at the American Preparatory Academy in Draper Wednesday after high levels of carbon monoxide were detected.

At 3:15 p.m. fire crews arrived at the daycare after receiving reports of a possible natural gas leak. After detecting high levels of carbon monoxide inside the building, the school was ordered to be evacuated.

By the time they arrived, there were five students and five adults occupying the building. They all had noted possible symptoms of carbon monoxide exposure including headaches, nausea and vomiting.

According to American Preparatory Schools Executive Director Carolyn Sharette, it was at this time that staff immediately reported the incident.

“You can never be too careful when little kids are involved, obviously [we] don’t want anyone to be sick,” she said. “So, we’re really glad it was not as, not more serious.”

It is believed the source of the carbon monoxide originates from a gas-operated pressure washing system that was being operated on the outside of the building, where the carbon monoxide was able to enter the building from a door left open as well as an airway entrance on the rooftop.

A total of 45 toddlers and 10 adults were present on the school grounds while the power washing system may have been operated. None of the remaining people during the evacuation were transported to the hospital but were asked to transport themselves to a hospital to be examined for carbon monoxide exposure.

Officials say five children and four adults that were treated at the hospital are doing fine now, with the facility itself back up and running Thursday.

Officials are also asking anyone present at the school during this time to also be examined for carbon monoxide exposure.

Children evacuated from Draper daycare for high carbon monoxide levels (fox13now.com)