Rescuers have made it to an underground parking structure where it had been hoped they might discover people who had been trapped in cars SURFSIDE, United States: Four more bodies were discovered overnight in the rubble of a collapsed apartment building in Florida, authorities said Wednesday, as the search for more than 140 people unaccounted for entered its seventh day. The official death toll now stands at 16 after most of a building in the Miami-area town of Surfside suddenly pancaked early last Thursday, but hopes are dwindling that the hundreds of rescuers combing the oceanfront site will find anyone alive. “We’ve now recovered four additional victims. The number of deceased is at 16. Twelve next-of-kin notifications have been completed, that is four families still waiting to hear,” Miami-Dade County Mayor Daniella Levine Cava told a news conference. She said the personnel in what has become an enormous rescue operation were doing “everything humanly possible, and then some, to get through this tragedy, and we are doing it together.” Col. Golan Vach, head of an Israeli military unit that specializes in search and rescue operations, told CNN his team had uncovered the bodies as they sifted through the debris, finding what he described as tunnels in the rubble. In one case, this space was created between balconies of apartments as the building collapsed, he said. “Between them remained a big space of air,” Vach said. “We crawled in those tunnels. We called people and unfortunately we didn’t find anything.” Elad Edri, deputy commander of the Israeli search and rescue team, detailed how rescuers have completed a map outlining the bedrooms and other living spaces in the building where residents could have been trapped. But he added that “it’s been more than six days from the collapsing and the chances to find the lives are low.” He also reported that rescuers had made it to an underground parking structure where it had been hoped they might discover people who had been trapped in cars, but found no one. The cave-in of the 12-story Champlain Towers South building has sparked a search-and-rescue effort involving engineers and specialists from across the United States and as far afield as Mexico and Israel. US President Joe Biden will on Thursday visit the site with First Lady Jill Biden to meet with families of the victims. Residents in the part of Champlain Towers South that remained intact reported being awakened around 1:30 am (0530 GMT) Thursday by what sounded like cracks of thunder that shook their rooms. “It was like an earthquake,” Janette Aguero, who escaped from the tower’s 11th floor with her family, told AFP. Rescuers who arrived in the moments after the tower came down helped evacuate dozens of residents, and pulled one teenage boy alive from the rubble. But since then, no other survivors have been found, despite huge numbers of rescuers combing the debris with the help of sniffer dogs and cranes. Levine Cava said on Tuesday that 210 people were working on the site. Experts are looking at possible pre-existing critical flaws in the structure of the apartment tower. An October 2018 report released by city officials last Friday revealed fears of “major structural damage” in the complex, from the concrete slab under the pool deck to the columns and beams in the parking garage. In a letter to residents in April, Jean Wodnicki, the chair of the condo association, described “accelerating” damage to the building since then. Repairs had been set to begin soon in the 40-year-old building.