There are still 150 residents missing in the Surfside building collapse. More than 200 rescuers were hampered by thunderstorms and debris that fell from the side of the building.

Nicholas Balboa, an eyewitness who was walking his dog as the Surfside, Florida, building collapsed, describes getting first responders to a young boy calling out from the rubble.

A portion of the Champlain Towers collapsed in Surfside, Florida, Thursday. At least three people have been killed and authorities are urgently searching for 99 others who may be trapped in rubble.

Dr. Fiorella Terenzi, who lives in Champlain Towers East, next to the Surfside, Florida, building that collapsed, discusses what she witnessed and why she’s staying in her building.

Mayor Charles Burkett of Surfside, Florida, discusses the latest on the search for survivors of the condo building collapse and how his community is grappling with the disaster.

Devastating photos of destruction show rescue crews desperately search for missing loved ones among rubble, dust and debris.

ABC News’ David Muir spoke to Miami resident Nicholas Balboa, who was on the scene shortly after the condominium collapse in South Florida and heard a little boy’s cry from the rubble.

Officials expect the death toll to rise as the search and rescue effort continues in Surfside, Florida.

Mayor Daniella Levine Cava said that 102 people are accounted for while 99 remain unaccounted for after the apartment building collapse.

Officials say first responders rescued 35 people from the building and pulled two more survivors from the rubble.

Officials say responders rescued dozens of people after a 12-story condo building partially collapsed overnight.

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The Florida International University Bridge collapsed in March 2018, killing six people.

The engineers of the pedestrian bridge that collapsed at Florida International University last year failed to recognize that the bridge was in danger of failing.

Katrina Collazo is suing the engineers and construction companies involved.

Witnesses who saw the bridge fall described the horror that followed.

Witnesses who saw the bridge fall described the horror that followed afterward.

The first lawsuit stemming from the Miami bridge collapse was filed Monday.

FIU President Mark Rosenberg named Brandon Brownfield, a married father of three, as the final victim to be identified after Thursday's catastrophe.

Authorities say six people died when the bridge collapsed Thursday.

The deadly Miami bridge collapse this afternoon "felt as if there was an earthquake," a witness told ABC News.

Crews in Miami have recovered all six victims as the investigation into the collapse continues.

Reports surface showing engineers met with school officials two hours before the structure collapsed to discuss whether cracks found in the bridge posed a "safety risk."

Crews expect to find more dead as debris is removed from Thursday's collapse at Florida International University.

Out of the three VSL Structural Technologies workers who were on the site, one is dead and two are in the hospital.

An engineer reported cracks in Florida bridge days before collapse but the message wansn't heard until Friday, officials said.

Six were killed and many others injured when the bridge collapsed Thursday.

At least two of the firms have been sued or fined before.

New details on the victims emerge as the recovery operation continues.

The bridge, hailed as an engineering marvel, collapsed Thursday afternoon.

Six people have died from the collapse of a newly installed pedestrian bridge in Miami, but that number is expected to increase.

Investigators are looking into the use of Accelerated Bridge Construction to erect the structure that collapsed and killed at least six at Florida International University.

First responders could be seen loading injured victims onto stretchers.

Witnesses said it felt like an earthquake during the collapse of a newly constructed 174-foot bridge that weighed 950 tons.

FIU president Mark Rosenberg shares the latest details on the investigation into the collapse of a newly constructed bridge connecting the campus to a nearby city.

Crews are now working on recovery efforts as federal investigators look into the cause of the pedestrian bridge collapse at Florida International University. ABC News' Maggie Rulli reports.

First responders could be seen loading injured victims onto stretchers and searching for people under the rubble.

The technique used to build the bridge that collapsed in Miami today was intended to cause less disruption and make installing new bridges easier.

Firefighters have pulled out at least four deceased people from the rubble, according to Miami-Dade fire chief Dave Downey.

The bridge, which costs $14.2 million, was designed to withstand a Category 5 hurricane.

"All of a sudden, I saw it collapse from the left towards the middle," she said.

Officials said an engineering company was conducting a stress test on the span.

A bridge over 8th Street at the FIU campus collapsed, crushing several cars.

Ten victims are being treated at Kendall Regional Medical Center following today's deadly collapse.

Miami-Dade Fire Rescue says more than 100 firefighters are working to rescue those trapped.

"All of a sudden, I saw it collapse from the left towards the middle," she said.

A pedestrian bridge stretching across a street on the Florida International University campus in Miami collapsed Thursday afternoon, killing multiple people, according to the Florida Highway Patrol.

Tiona Page says she saw a cloud of dust following the collapse at FIU and heard screams coming from the trapped cars.