Twelve people, including several children, were taken to hospitals after they were sickened by carbon monoxide fumes from a faulty furnace in an apartment building in Skokie early this morning.



Firefighters were called to the apartment around 3:15 a.m. to check on a sick person and recorded high levels of carbon monoxide, according to Skokie Fire Capt. Steven Ludkowski.



"So they started knocking on doors," he said.



Six ambulances took the 12 people were taken to hospitals from the building in the 8000 block of North Keating Avenue. Authorities said they were all expected to survive but their conditions were not available.