Demolition crews set off explosives late Sunday to bring down the damaged remaining portion of a collapsed South Florida condo building, a key step to resuming the search for victims as rescuers possibly gain access to new areas of the rubble.

Crews were to begin clearing some of the new debris so rescuers could start making their way into parts of the underground garage that is of particular interest. Once there, rescuers are hoping that they will gain access for the first time to parts of the garage area that are a focus of interest, Miami-Dade Assistant Fire Chief Raide Jadallah has said. That could give a clearer picture of voids that may exist in the rubble and could possibly harbor survivors.

The precarious, still-standing portion of a collapsed South Florida condo building was rigged with explosive charges and set for demolition overnight, Miami-Dade County officials said late Sunday. The work has suspended the search-and-rescue mission, but officials said it will open up new areas for rescue teams to explore.