Five Japanese submarines active of western Australian coast according to the U.S. Joint Intelligence Committee. Daily summary dated 7 March 1942

An item reported that 5 Japanese submarines seemed to be active between latitude 21.36 south and longitude 112.11.30 east or west-south west Australian coast.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 87 dated 7 March 1942.