Enemy submarines active on the Pacific according to the U.S. Joint Intelligence Committee. Daily summary dated 26 January 1942

An item reported that enemy submarines were attacked without success near Midway, Canton Islands and a location around 325 miles south east of Oahu, Hawaii. There seemed to be nine enemy submarines on the Pacific of which probably three in the Yokosuka area.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 47 dated 26 January 1942.