Italian rescuers confirmed Saturday the death of a fifth worker after a concrete beam and layers of slabs collapsed at a supermarket construction site in the city of Florence a day earlier.

“I’ve just been informed that rescuers are recovering the body of a fifth worker,” said Tuscany Region’s president, Eugenio Giani.

Earlier, firefighters spokesman Luca Cari told RaiNews TV channel that they recovered the body of the fourth worker. “The mass of rubble is enormous,” he said.

A group of workers were putting together on Friday prefabricated concrete structures for a new Esselunga supermarket northwest of Florence’s main train when, according to initial reports, a reinforced concrete beam toppled over a layer of slabs, which then collapsed, trapping eight men under the rubble.

Rescue teams successfully pulled out three of the eight who were taken to local hospitals, where they were reportedly in serious but not life-threatening condition