No comment on irregularity claims, probe underway - mayor. Florence Mayor Dario Nardella refused to comment on allegations that two of the construction workers killed in Friday's structural collapse were irregular.

The four construction workers confirmed dead in the collapse areItalian Luigi Coclite, aged 60, 54-year-old Mohamed Toukabrifrom Tunisia, and Mohamed El Ferhane, 24, and Taoufik Haidar,45, both from Morocco.    Rescuers are still trying to recover the body of a third Moroccan national, Bouzekri Rachimi, who is missing feared dead.