(Watertown) Fire damaged a two-family residence in Watertown Monday night. Just after 8pm, the Watertown Fire Department responded to a call of smoke entering the structure at 604 North Second Street. Upon arrival, crews found smoke on the second floor and reached the seat of the fire by opening up walls and ceilings which revealed charring in those areas. Firefighters disconnected the power to both residences and continued overhaul operations. Chief Kraig Biefeld says the blaze displaced four occupants from the upper unit and that no injuries were reported. The cause of the fire is electrical and damage is estimated to be roughly $7,500. Biefeld says his department did not find any working smoke detectors in the residence. The Watertown Fire Department requested help through the Mutual Aid Box Alarm System (MABAS) and the following units arrived on scene to assist; Jefferson, Waterloo, Ixonia, Lake Mills, Johnson Creek, Clyman, Lebanon, Lake Mills EMS, and Western Lakes. During this fire call help was also received from Ixonia for an ambulance to respond to an EMS call in a different location in the city.