At least 159 people are unaccounted for and four are confirmed dead after a condominium building’s sudden collapse in Surfside, Fla., near Miami Beach, officials said. The search for survivors pushed into Friday as rain fell on the wreckage. Authorities, families and friends have braced for bad news of more deaths.

Here are significant developments

  • At an emergency meeting, officials in Surfside raised questions about the county’s building codes — with one predicting that, just as after Hurricane Andrew, a major shift in how structures are evaluated is likely.
  • Officials also revealed they are hiring an independent engineering firm with the idea of having it evaluate the safety of other buildings in the beachfront community. The mayor added that authorities were weighing evacuating residents from another building as a precaution.
  • Family members said that Stacie Fang, the mother of a boy rescued Thursday from the building’s rubble, is confirmed dead. Three other bodies recovered from the scene remained unidentified, an official with the medical examiner’s office said Friday evening.
  • Miami-Dade County Mayor Daniella Levine Cava said that 120 people had been accounted for by authorities.
  • The cause of the collapse remained unclear. But Champlain Towers South, constructed on reclaimed wetlands in 1981, sank by about two millimeters a year in the 1990s, according to a 2020 study.
  • Some residents filed a $5 million lawsuit against Champlain Towers South’s resident-led condominium association Thursday night, seizing on statements about plans for extensive repairs for rusted steel and damaged concrete. A lawyer who sued the association in 2015 told The Washington Post that signs of corrosion were previously ignored.
  • President Biden approved an emergency declaration, opening the door for the Federal Emergency Management Agency and the Department of Homeland Security to coordinate relief efforts.