The hoverboard was plugged into an outlet by the front door next to an overstuffed chair, where a child sat.
The child's father was nearby, relaxing on a couch.
That's when both of them heard crackling noises and, saw smoke. Within moments, the hoverboard had "exploded fiercely," blocking their way out of the front door, said Fire Chief Brian Enterline. The flames spread quickly, trapping four more children upstairs. Harrisburg Fire Chief Brian Enterline provided those details and more during a news conference Monday about a fatal fire Friday night in the 2500 block of Lexington Street.