Littleton, MA - Littleton Firefighters responded to a single 911 call for a possible structure fire at 170 King Street on Saturday afternoon, April 25th. They arrived with fire showing from a propane BBQ grill that extended to the semi enclosed porch of a large two-and-a-half story wood-frame. LFD immediately transmitted a working fire, bringing Ayer & Boxborough to the scene. The fire was then quickly knocked down with minor extension into the structure itself.