The Cincinnati Enquirer

Six people were hospitalized Monday in separate carbon monoxide poisoning incidents on both sides of the Ohio River.

In Northern Kentucky, two teenage girls were recovering from an early morning carbon monoxide leak that left them unconscious in their home in the 400 block of Fifth Street in Dayton.

The girls' parents found them. The girls regained consciousness after being administered oxygen, and they were taken to Children's Hospital Medical Center in Cincinnati for treatment. The parents were also sickened by the fumes, but did not require hospitalization. Bellevue-Dayton fire officials were still investigating the source Monday night.

In Cincinnati, four people were taken to University Hospital on Monday afternoon after being found unconscious in a North Avondale residence. Firefighters responded about 2:45 p.m. to the house in the 1000 block of Dana Avenue.

District Fire Chief Anson Turley said high levels of carbon monoxide were detected, and fire investigators and city building inspectors later determined a faulty furnace was the source.

"They're doing well," Turley said of the people who had been hospitalized.