Miami Dade Fire Rescue was conducting search and rescue operations, and said in a tweet that more than 80 units were "on scene with assistance from municipal fire departments".
Authorities had no word yet on details of how many people lived in the building. Sources tell CBS Miami that at least one person has died, while ABC11 reports at least eight have been hospitalized with injuries, with one person said to be in critical condition.
Officials at nearby Aventura Hospital said they had received three patients from the scene, NBC6 reported. Both the Miami-Dade Fire Rescue and the Miami-Dade Police Department also confirmed there was at least one fatality as a result of the building collapse. "Look at the building, it's gone".
Some 15 families walked out of the building alive on their own and were put up in a local hotel, according to Burkett.
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Local media said dogs were helping in the search for survivors, and that records showed the building was built in 1981 and had more than 130 units inside. He said his wife and the elderly woman were both rescued. About 80 rescue units responded to the scene.
"The building, one of these huge buildings, gone, right there beside us, the craziest thing I've ever heard in my life", the man said in the video.
The department has not yet said what may have caused the collapse near 88th St and Collins Ave.
This is a developing story.