Rescue teams have located more people who were killed in the collapse of Champlain Towers South in Surfside, Florida, an Israeli commander told CNN. Col. Golan Vach, commander of the Israeli National Rescue Unit, said the bodies were discovered in the last 12 hours, after rescuers found tunnels in the midst of the destruction. “These tunnels that we found right now were almost the first to be big enough to enable people to stay between them. Most of the collapse is very, very tight. The collapse was major,” Vach said, adding that he has only a “very minor” hope that any more survivors of the collapse will be found. The death toll currently stands at 12, with 149 people still missing.

Meanwhile, some firefighters have been working to reunite beloved pets stuck in the rubble in the tower that remains standing. “It’s heartbreaking,” Miami City Commissioner Ken Russell told The Washington Post. “So for there to be some hope that families can be reunited with these pets in this tragedy, it is important. They are going to have lost so much. If we can at least help them reunite with their pets, it’s worth a try.”