One person has died after a 12-story condo collapsed in a town outside Miami on Thursday.

The residents of the building have been trapped inside the bubble as rescuers continue to pull the survivor out of the debris.

Surfside Mayor Charles Burkett warned that the building manager told him the tower was quite full and the death toll was likely to rise.

“The building is literally pancaked,” he said. “That is heartbreaking because it doesn’t mean to me that we are going to be as successful as we wanted to be in finding people alive.”

Rescuers have pulled out 35 people from the building, so far, as they continue to look for more.

Earlier, Burkett said two people were brought to the hospital, one of whom died. He added that 15 families walked out of the building on their own.

Work is currently being done on the building’s roof, but Burkett said he did not see how that could have caused the collapse. Authorities did not say what the cause may be.