Numbers and position of enemy submarines in West Atlantic Theater unchanged according to the U.S. Joint Intelligence Committee. Daily summary dated 15 April 1942

An item reported no chances in the numbers and positions of the enemy submarines active in the West Atlantic Theater. One submarine seemed to be operating off the north Brazilian coast, one-two in the eastern Caribbean and the remaining further north.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 126 dated 15 April 1942.