At 0000 hours, US radar operators detected two signals approaching Pearl Harbor, US Territory of Hawaii; they were two H8K flying boats from Wotje, Marshall Islands via French Frigate Shoals (where they took on fuel from submarines I-15 and I-19). At 0130 hours, five PBY Catalina aircraft were launched, armed with torpedoes, to search for the carriers that the Americans thought where the flying boats must have launched from; at the same time, five US Army fighters were launched to attack the flying boats. At 0210 hours and 0230 hours, the two flying boats dropped their payloads uncontested, although the first bombs fell harmlessly in the mountains 10 miles from Pearl Harbor and the second bombs landed in the water just outside of Pearl Harbor. The two aircraft flew back to Wotje unscathed Facility
