The toll rose Monday evening as rescue workers searched through the rubble of the collapsed condominium building in South Florida, bringing the number of dead to 28 and the number of people still unaccounted for to 117. Miami-Dade Mayor Daniella Levine Cava continued to describe operations in the beachside community of Surfside, now in their 12th day, as a “rescue,” not a “recovery,” in hopes more people would be found alive, although no one has been since the earliest hours of the search. “There is hope there are voids to continue the search and rescue operation,” Levine Cava said, although few had been found in the new section of rubble, Miami-Dade Assistant Fire Chief Raide Jadallah told family members. A man walks past a memorial site created by neighbors as search and rescue efforts resume the day after the managed demolition of the remaining part of Champlain Towers South complex in Surfside, Florida, July 5, 2021.Demolition experts late Sunday imploded the remaining portion of the partially collapsed condominium, fearing that it was unstable and could come down in the face of high winds from an advancing tropical storm.  It took a matter of seconds for the remaining structure to fall after the demolition was triggered around 10:30 p.m. local time. A cloud of dust and debris rose and lingered in the sky for a few minutes afterward.  Levine Cava said that the implosion went exactly as expected and that search crews, who had suspended their work Saturday, had been cleared to resume working at the collapse site. “I feel relief because this building was unstable. The building was hampering our search efforts,” she said. “We were stuck that we couldn’t get to a certain part of the pile. I’ve heard them say that they think there are voids in this area, areas where they’ll be able to search.” Local officials had warned people in the area surrounding the building to stay inside and keep their windows closed. Extra efforts were made to cover the original collapse site to make sure new debris did not interfere with search and rescue efforts there.  The 12-story condominium building in Surfside, Florida, north of Miami, partially collapsed without warning early on June 24. Officials are watching the approach of Tropical Storm Elsa.  Forecasters at the U.S. National Hurricane Center said they expect the center of the storm to pass near or over the west coast of Florida on Tuesday and Wednesday. That track would spare Surfside from a direct hit, but forecasters still expect the region to experience strong winds with gusts of at least 65 kilometers per hour.