The collapse of the building in Miami leaves 99 people dead. more news ERROR: Formato de URL no válido did the building collapse? Local authorities have not provided much information regarding the possible causes of the collapse. "The garage was flooded, it could be water, some crack that has pierced the concrete and (the building) collapsed," said the owner of two apartments in the property in question. The same person also pointed out that repairs were being carried out on the roof of the building, as well as on its air conditioning system.