Authorities said Monday that the remains of 10 people have been found in the collapse of a 12-story beachfront condominium in Florida.

Police said Sunday night that they identified the remains of Leon and Christina Oliwkowicz, an elderly couple from Venezuela with ties to synagogues in Florida and Chicago.

They also found the bodies of Luis Bermudez, a young man with muscular dystrophy who was from Puerto Rico, and his mother Ana Ortiz.

Authorities say that 151 others remain missing as rescuers search through the rubble of Champlain Towers South.

Rescuers searching for a fifth day for survivors of a Florida condo building collapse used bucket brigades and heavy machinery as they worked atop a precarious mound of pulverized concrete, twisted steel and the remnants of dozens of households.

Authorities said Monday it is still a search-and-rescue operation, but no one has been found alive since hours after the collapse on Thursday.

Ten people have been confirmed killed, and more than 150 others are still missing in the community of Surfside, just outside of Miami.