US sub sinks Iranian warship in Indian Ocean, Hegseth says

US Secretary of Defense Pete Hegseth has said an American submarine sank an Iranian warship in the Indian Ocean, BBC reported. 

He said the ship was sunk by a torpedo on Tuesday, and that it died a "quiet death".

Hegseth did not name the ship, but his announcement came after Sri Lankan officials said its navy had responded to a distress call from an Iranian ship on Wednesday morning named the Iris Dena, which had gone down about 40km (25 miles) from its southern coastline, according to BBC.