The USS Sacramento (PG-19) was at Pearl Harbour during the attack. Although she was in a repair berth, she was already opening fire by 0800, just five minutes after the attack begin.
By 0802, Sacramento reported downing its first Japanese plane. Sacramento is credited with downing at least two enemy planes during the attack.
After the attack was over, Sacramento helped in rescue operations around the harbour. About two dozen sailors from Oklahoma were rescued by Sacramento.