 One of the mines from this mission is credited with sinking the , in July 1944.On 31 May, "Tsugaru" was assigned to “Operation KON” (the Relief of Biak), transporting reinforcements from Zamboanga on Mindanao in an effort to counter the American landings.On 21 June, after departing Sorong, New Guinea for Halmahera Island, "Tsugaru" was torpedoed by the Royal Dutch Navy submarine "K-XIV", which caused severe damage.