Enemy submarines sighted off Oahu and California according to the U.S. Joint Intelligence Committee. Daily summary dated 17 January 1942

An item reported that 4 enemy sumarines were sighted south and west of Oahu and two more off the Californian coast.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary dated 17 January 1942 No. 38.