British submarine destroyed enemy schooners in the Mediterranean according to the U.S. Joint Intelligence Committee. Daily summary dated 1 January 1942

An item reported that a British submarine sunk in the Mediterranean 5 schooners of which loaded with ammunition and hit with a torpedo an Italian destroyer all between 12-23 December 1941.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 22 dated 1 January 1942