Video footage of the burned out hallway and stairwell of 2363 Prospect Ave in the Bronx, where a 5th alarm fire killed 12 people. #FDNY Fire Marshals determined the cause of the fire to be a young child playing with the burner on a stove pic.twitter.com/MwcuxX6j8k

— FDNY (@FDNY) December 29, 2017