Fire destroys a garage on Janesville near south side. Firefighters say they were called to the blaze in the 300 block of Clark Street at 1:54 a.m. Thursday morning. Officials say fire destroyed the single bay, detached garage, and heavily damaged the siding on the home and garage next door. A lawnmower and personal items were lost. The cause of the fire is under investigation. Firefighters were on the scene for about two hours.