Live Updates: Death toll stands at 5 as rescue efforts continue at collapsed Miami building

At least five people are confirmed dead and more than 150 people remain unaccounted three days after a condo tower near Miami came crashing down while people inside were sleeping.

A fire had hampered search efforts Saturday at the site of the collapsed apartment building in Surfside, Florida. Teams were using infrared technology, foam and water to fight the blaze, but it was very difficult to isolate its source and stop it, Miami-Dade County Mayor Daniella Levine Cava said at a press conference. The smoke was the biggest barrier as searchers continued their around-the-clock effort to find any survivors. First responders believe it is still possible people will be found alive. There are crevices in the debris, allowing for airflow, said the mayor.