Two children were among the eight people killed after a New York City apartment building collapsed, officials said Thursday, as rescuers fought the rain in their continued, frantic search for possible survivors. The FDNY crews were still in rescue mode more than 20 hours after the horrific collapse at 1321 Flatbush Ave. in Brooklyn, the city’s most populous borough.“We will be here until we are 100% sure there are no more people trapped,” FDNY Commissioner Lillian Bonsignore told reporters. “To be clear, we have not shifted from rescue to recovery. We are still in the search-and-rescue phase.” First responders search for victims in the rubble in Brooklyn Thursday.Charly Triballeau / AFP via GettySix of the eight killed were pronounced dead at the scene, Mayor Zohran Mamdani said. Two others died at the hospital.“This has been a very dark evening and morning for our city,” Mamdani said.The half-dozen dead adults also included a pair of construction workers, he added.There were 18 people injured, four of those were firefighters and 14 were civilians. One of those injured was listed in critical condition.“This is a devastating tragedy for New York and our prayers are with those who are recovering in the hospital and those who have died,” Bonsignore said. “The FDNY mourns with those families and we promise, with everything we have, we will not stop working until everyone is rescued or recovered.”