>>63982292
They did the same for the other big prize that the soviet got, the battleship Giulio Cesare (later Novorosiysk). In fact, when the ship blew up in port in 1955 there was the speculation that Italian frogmen were involved, although the most accepted explanation is that it was sunk by an old ww2 german mine that was never removed (other such mines were found in the port shortly after)