Enemy submarines were active in the Gulf of Mexico and Greater Antilles according to the U.S. Joint Intelligence Committee Daily summary dated 8 May 1942

An item reported that enemy submarines were active in the Gulf of Mexico and in the vicinity of the Greater Antilles. Further was nothing changed compared with the Summary dated 7 May.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 149 dated 8 May 1942