UPDATE (07/01/21): Rescue efforts halted in Surfside, Florida, as engineers fear instability of condo section still standing. Rescuers stopped work at 2:11 a.m. ET when on-site engineers identified that one column had shifted 8 to 10 inches and three cracks were expanding. Miami-Dade County Mayor Daniella Levine Cava said at a Thursday news conference that search and rescue teams will continue as soon as it is safe to do so. ---- The bodies of two children were found in the rubble of the collapsed condo building outside Miami on Wednesday, raising the death toll in the disaster to 18. The children were 4 and 10 years old, said Miami-Dade County Mayor Daniella Levine Cava, who provided the update at an afternoon news conference. The number of missing people is now 145. "Any loss of life, especially given the nature of this unexpected, unprecedented event, is a tragedy,'' Levine Cava said. "But the loss of our children is too great to bear." 🔗 Visit our link in bio for the latest from #Miami. 📸: Chandan Khanna, @gettyimages