A small explosion has damaged a La Crosse apartment building and caused an evacuation.
Firefighters say the blast damaged a water heater and the building's ventilation system. The La Crosse Tribune says firefighters were investigating a popping sound in the boiler room at Wedgewood Common Apartments when the explosion occurred about 2:00 a.m. Friday.
Apartment residents were temporarily evacuated to a city bus. No one was hurt.