The death toll from this week’s collapse of three buildings in Rio de Janeiro’s historic downtown has risen to 17, officials said Saturday.

Despite steady rain that has fallen since Friday night, dozens of firefighters were still working amid the mountain of rubble to find the corpses of at least five people still believed to be missing.

Authorities have ruled out the possibility of finding any survivors at the site of the wreckage, located near the Brazilian metropolis’ Cinelandia square.