“Dane County dispatch said three people were sent to the hospital following a carbon monoxide leak at a fast food restaurant in Cottage Grove early Monday morning.  The incident happened just before 6 a.m. at the McDonald’s in the 400 block of West Cottage Grove Road…”

https://www.channel3000.com/cottage-grove-restaurant-evacuated-after-co-leak/#:~:text=COTTAGE%20GROVE%2C%20Wis.,of%20West%20Cottage%20Grove%20Road.