VIDEO: An explosion in the town of Westport drew first responders from multiple departments Wednesday morning.
Crews from Cross Plains, Middleton, Verona and Waunakee were sent to a home at 4723 Sumac Road around 8:30 a.m.
Dispatchers with Dane County said they received a call about windows being blown out of a garage.
"Upon arrival, we were reading high levels of carbon monoxide in the structure. We have since cleared the structure of any occupants and searched the building," said Chief Aaron Harris, with the Middleton Fire District.