Des Moines authorities say eight people including an infant have been taken to local hospitals following a carbon monoxide leak at a house.
The Des Moines Fire Department says a woman contacted authorities Friday morning to complain about a headache that had lasted several days.
Department spokesman Captain Steve Brown tells Des Moines television station KCCI that a woman collapsed after she answered the door to responding firefighters. They later recorded high levels of carbon monoxide in the house, which did not have a detector for the odorless gas.
The station reports a mother and two children were taken to Mercy Medical Center. Five others in the house were taken to Iowa Methodist Medical Center. Their names and conditions have not been released.