One person was killed in a residential fire on Sunday morning in McGregor. The Mar-Mac Police Department says they were notified of the fire in the 800 block of Walton Street at about 6:15 a.m. Sunday. A report says the residence was occupied by two individuals and one of the residents was unable to escape and was found deceased. Fire departments from McGregor, Garnavillo and Prairie du Chien responded along with other first responders. No other information has been released.