VIDEO: U.S. Attack Boat Torpedoes Iranian Frigate off Sri Lanka

This story has been updated with additional information from U.S. Central Command about the sinking of an IRGCN corvette. An American attack submarine sank an Iranian Navy ship off the coast of Sri Lanka, extending the ongoing conflict with Iran to the Indo-Pacific. It’s the first time since World War II that a U.S. submarine has sunk another vessel using a torpedo. The submarine launched an MK-48 heavyweight torpedo, Chairman of the Joint Chiefs Gen. Dan Caine told reporters Wednesday during a briefing at the Pentagon. The incident marks the first time the war with Iran has expanded to U.S.