During the great Soviet offensive of 1944 the Soviets tried to finish the war against the Finns, once and for all. The Germans came to aid the Finns and among the material brought with them was the AA-cruiser Niobe, which was ordered to strengthen the air defences of Kotka, then one of the most bombed cities of Finland. The Soviet Union put much emphasis on finding and sinking the Finnish coastal defence ship Väinämöinen. Soviet aerial reconnaissance spotted a large ship in the Kotka harbour and decided to attack it with great strength. 132 bombers and fighters took off on July 16, 1944. The ship was however the Niobe and the aircraft were met with fierce resistance. 9 aircraft were shot down before the ship was hit by seven bombs and two bouncing bombs (similar to the ones used in Operation Chastise) from two Soviet A-20 Havoc bombers. The guns were still shooting while she was settling in her shallow grave. 70 men were lost.
The Niobe was raised and scrapped in 1953.