‘Not seeing anything positive’: No signs of life in Miami collapse site, death toll reaches 36

Workers walk past the collapsed and subsequently demolished Champlain Towers South condominium building, Tuesday, July 6, 2021, in Surfside, Fla. (AP Photo/Lynne Sladky)

Volunteers along with locals replace dead flowers with fresh ones prior to Guara Family's burial at St. Joseph Catholic Church, Tuesday, July 6, 2021, in Miami Beach, Fla. (Carl Juste/Miami Herald via AP)

Rescue crews work in the rubble of the collapsed Champlain Towers South condominium building, Tuesday, July 6, 2021, in Surfside, Fla. (AP Photo/Lynne Sladky)

SURFSIDE, Fla. — Officials overseeing the search at the site of the Florida condominium collapse sounded increasingly somber Tuesday about the prospects for finding anyone alive, saying they have detected no new signs of life in the rubble as the death toll climbed to 36.