a battery involved?

A house fire killed three people, a mother and her two daughters, Monday January 13, 2025, in Wingles in Pas-de-Calais. Neighbors heard a detonation which could be explained by the explosion of a battery. Investigators are trying to identify the causes of the disaster and are particularly interested in an object present in the home, a Segway. So, in what case can its battery catch fire and cause a fire? Investigations continue. TF1 | Report J. Quancard, Z. Ajili