Rescuers continue victim search with no survivors found since early June 24 and new estimate of 159 people unaccounted for, as investigators seek a cause for the partial collapse of the 12-story beachfront building in Surfside, Fla., north of Miami Beach. White House declares emergency at the site with FEMA to coordinate federal aid.

At least eight vehicles were trapped beneath the rubble of an uncompleted pedestrian bridge that collapsed near the campus of Florida International University.