An apartment fire in Watertown Sunday morning was declared an arson and investigators have arrested a suspect, according to the Watertown Fire Department.
Two people jumped from the second story of the apartment complex at 501 N. Fourth St. to avoid the fire and another was rescued by firefighters.
Firefighters were called at 2:02 a.m. and found heavy fire coming from the rear of the structure when they arrived.
All three of the residents who escaped the fire were taken to the hospital with non-life-threatening injuries, according to investigators.
Investigators said the rear apartments on the second floor were heavily damaged. The apartments and business on the first floor suffered smoke and water damage. Crews remained on the scene until 8 a.m. The Red Cross was called to the scene to assist the apartment’s residents.
Crews from Lake Mills, Clyman, Johnson Creek, Waterloo, Lebanon, Lake Mills EMS, Ixonia, Ryan Brothers, Juneau, Oconomowoc, Helenville, Sullivan, Jefferson, Reeseville, Rome, and Juneau EMS were called to assist at the scene.
No damage estimate is available.