Federal investigators have zeroed in on flaws in the pool deck as the preliminary cause of the 2021 collapse of a 12-story Florida beachfront condominium that killed 98 people.

The National Institute of Standards and Technology said in a report Wednesday that the Champlain Towers South pool deck began falling down at least seven minutes before the tower, suggesting the pool dragged the building down with it.

¹ú²úÓÕ»ó¸£Àû. All rights reserved.