Watertown Fire Rescue was dispatched to a possible structure fire at approximately 2013 hours on February 6, 2026, at 1110 19th Street SW in Watertown. Dispatch made initial contact with the caller but was unable to obtain additional information. Reports indicated flames visible on the exterior of the residence with smoke showing. Upon arrival, law enforcement confirmed active fire conditions on the exterior side of the structure. Fire crews immediately initiated fire attack and primary search operations. The fire was brought under control within minutes of arrival, and the primary search was completed shortly thereafter. Watertown Fire Rescue responded with Battalion 1, Engine 4, Engine 3, and Medic 3, totaling 10 personnel. Crews remained on scene for just over one hour to complete overhaul and ensure scene safety. The homeowner was home alone at the time of the incident. All occupants were accounted for, and no civilian or firefighter injuries were reported. The cause of the fire was determined to be a propane grill located on the exterior of the residence that had been left on, igniting nearby materials. The residence was ultimately turned back over to the homeowner.