While the combat records of Italian submarines can't compare to that of their Axis partner Germany, an Italian
torpedo could still sink a ship. Such was the case on June 8, 1942 when the submarine Alagi torpedoed the
Navigatori class destroyer Antoniotto Usodimare off Tunis. The problem for the submarine commander was
that the destroyer was also Italian. It is unknown how many of the normal complement of 175 were on board
or how many survived the sinking.

The Navigatori class consisted of eleven ships, ten were sunk and one was captured the last of the class was
scrapped. The Alagi surrendered to the Allies after the Italian capitulation.