Nearly 100 people remain unaccounted for Friday morning, a day after a 12-story beachfront condominium building just north of Miami collapsed, killing at least one person.

A wing of the residential building in Surfside, Florida, came down with a roar around 1:30 a.m. Thursday. On video footage captured from nearby, the center of the building appeared to fall first, with a section nearest the ocean teetering and coming down seconds later as a huge dust cloud swallowed the neighborhood.