sentences:  During a US air raid on Kure harbor on 24 April 1945, "Aoba" was further damaged by bombing, and settled on the shallow bottom of the harbor.Rather than repair the crippled vessel, four additional twin 25-mm AA guns were fitted around the mainmast bringing the total number of 25-mm guns to 50 barrels (5x3, 10x2, 15x1) and "Aoba" was re-rated as a floating anti-aircraft battery.On 24 July 1945, about 30 planes from Task Force 38 attacked Kure, and bombed "Aoba" again.