US submarines operating successful in the Far East according to the U.S. Joint Intelligence Committee. Daily summary dated 24 March 1942

An item reported that US submarines operating in the Far East sunk 1-7.000 ton tankers and 2 cargo ships (1-5.000 and 1-6.000 ton). Furthermore they sunk probably a destroyer or anti submarine vessel and damaged 2-2.000 ton cargo ships.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 104 dated 24 March 1942