A porch fire in Janesville caused an estimated $100,000 in damages early Saturday morning. Officials were sent to 411 Wilson Avenue at 3:38 a.m. for a report of a residential fire on the porch. Crews arrived and found a fully involved porch with “significant” fire extending into the house and to a vehicle parked nearby. The release said smoke detectors had alerted the sleeping residents of the fire. The man and two children living in the home made it out safely. Firefighters knocked down the fire from outside and extinguished the flames within 15 minutes after arriving, though crews were at the scene for roughly 90 minutes to complete the search for hidden fire.