https://apnews.com/029e3e9686b5a40e30175ebd77353ebd

Search teams have been using drones, sonar, highly sensitive microphones and a range of other new and established technologies to help search for people in the oceanside condominium building near Miami that collapsed into a smoldering pile of rubble.

About 160 people were still unaccounted for Friday amid fears that the death toll of at least four could go much higher.