A second Iranian ship has entered Sri Lankan territorial waters just a day after an American submarine torpedoed a vessel and killed more than 80 people, Sri Lankan officials have said. Sri Lanka is not allowing the ship to dock but is providing some humanitarian assistance,

The Iranian warship that was sunk in the Indian Ocean likely didn’t have the technology needed to defend itself against submarines.

A retired U.S. Navy nuclear submarine commander is offering his perspective on Tuesday's torpedo attack that sank an Iranian warship in the Indian Ocean.

Video of a US submarine sinking an Iranian warship looked "remarkably similar" to a 1945 US submarine attack, a World War II expert said.

Tensions in the Persian Gulf have risen sharply. Iranian forces have blocked 38 Indian commercial vessels from continuing their journey. Iran has accused India of helping the United States locate and destroy a major Iranian naval ship.

Sri Lanka has taken control of the Iranian vessel IRIS Bushehr after it requested assistance, following the sinking of another Iranian warship by a U.S. submarine, escalating tensions in the region.

President Anura Kumara Dissanayake says Colombo preparing to safely evacuate 208 personnel stranded on Iranian ship IRIS Bushehr - Anadolu Ajansı

Sri Lanka on Wednesday said it had recovered over 80 bodies of Iranian sailors killed after a US submarine attack sank the Iranian frigate - IRIS Dena - off Galle, the island's southern coastal town.

Beijing is working to ramp up production of nuclear-powered attack boats and incorporate larger numbers of guided-missile classes into its submarine force, putting the People’s Liberation Army Navy on the path to credibly challenge U.

A U.S. Navy attack submarine has sunk an Iranian warship in the Indian Ocean, the Pentagon has confirmed. Authorities in Sri Lanka had earlier announced they had rescued Iranian s