An item reported that on 28 August in the Faisi (Shortland Island-Buin (Bogainville Islands, Solomon Islands area 2 Japanese cruisers, 7 destroyers, 2 cargo ships and 4 flying boats were sighted and in the nearby Buka passage another cruiser, a destroyer, a possible seaplane tender and a cargo ship.
Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 263 dated 30 August 1942