After firing in the preinvasion bombardment, "Frazier" covered the landings on Attu 11 May 1943, and patrolled off that island and Kiska, Alaska. On 12 May, she sighted two periscopes and opened gunfire on who dived quickly but not before "Frazier" had scored hits on the periscopes. Immediately gaining sonar contact, the destroyer began a depth charge attack which brought air bubbles, oil, and debris to the surface. Two more attacks ensured the submarine was sunk.