Engagement south of Bougainville
On January 10, 1943 Argonaut spotted a convoy of five freighters and their destroyer escorts. An Army aircraft was by chance flying overhead and witnessed A rgonaut's attack. Argonaut hit at least one of the destroyers with her torpedoes, and they promptly counterattacked. A crew member on board the plane saw Argonaut's bow suddenly break the water at an unusual angle. It was apparent that a depth charge had severely damaged the submarine The destroyers continued circling Argonaut and pumping shells into her. She slipped below the waves and was never heard from again. ... One hundred and five officers and men went down with the submarine.