The Pentagon has not said which American submarine fired the torpedo, except to say it was a fast-attack submarine.

At least 80 people are dead after a United States submarine torpedo sank an Iranian warship amid the ongoing Iran war.

As naval warfare reemerges as a key strategy in the US war with Iran, World War II museum ships are finding new relevance.

Sri Lanka’s navy has recovered 87 bodies and rescued 32 people after an Iranian warship was sunk by a U.S. submarine in international waters near the island. U.S.

Secretary of Defense Pete Hegseth called the sinking of an Iranian warship with a single Mk48 torpedo a "quiet death." ...

A U.S. submarine sunk an Iranian warship off Sri Lanka’s coast in the Indian Ocean, War Secretary Pete Hegseth confirmed during a Wednesday morning press conference. Hegseth said the enemy ship ...

US Secretary of Defense Pete Hegseth said Wednesday that a US submarine sank an Iranian warship in international waters after Sri Lanka’s Navy said it rescued more than two dozen people from an ...

Prime Minister Anthony Albanese’s disclosure about the attack in the Indian Ocean prompted concern that Australia’s close ...

Sri Lanka's navy says around 140 people are feared missing after a military vessel went down off its southern coast.

IRIS Dena was one of Iran’s newest combat ships, and had 180 personnel on board when the submarine attacked. Reports of the Dena being in distress first emerged overnight between Mar. 3 and Mar. 4, ...

The United States and Iran have offered sharply different accounts of the sinking of an Iranian warship in the Indian Ocean ...