The spokesman told BFMTV that it is too early to know the origin of the fire. He said it began on both the outside and inside of the building and raged through the third through sixth floors. He did not clarify.
The building has two elevator shafts, which typically can spread flames. Paris recorded its deadliest fire in a decade earlier this year, when a blaze in a posh western district killed 10 people in February. Arson was suspected.