In a significant escalation of the West Asia crisis, a US submarine on Wednesday torpedoed and sank an Iranian warship in international waters off Sri Lanka's coast when it was returning after participating in the Milan naval exercise, a multilateral wargame hosted by India. US Defence Secretary Pete Hegseth, confirming the strike, said at a Pentagon media briefing that it was the first sinking of an enemy warship by a torpedo since World War II."An American submarine sank an Iranian warship that thought it was safe in international waters...Instead, it was sunk by a torpedo," Hegseth said. The Pentagon has also released a short video of the sinking of the Iranian frigate. The warship IRIS Dena is a Moudge-class frigate and had nearly 180 crew members on board.
https://t.co/PiqQpVIrMu pic.twitter.com/Wc1e0B0um7
— Department of War ???????? (@DeptofWar) March 4, 2026
Sri Lankan Navy, reported that 87 bodies were recovered and that 32 people were rescued following sinking of the warship IRIS Dena.Sri Lankan Foreign Minister Vijitha Herath said the military rescued 32 critically wounded sailors.
Bodies of Iranian sailors arrived at the Galle mortuary on Wednesday after a submarine attack on the Iranian warship IRIS Dena.
— Iran International English (@IranIntl_En) March 4, 2026
A US submarine sank an Iranian warship off the southern coast of Sri Lanka, US Defense Secretary Pete Hegseth said on Wednesday, dramatically widening… pic.twitter.com/dq6xneg4Sk
IRIS Dena was part of Indian Navy's premier multilateral maritime exercise Milan. The mega exercise last month saw participation of 42 warships and submarines that included 18 ships from friendly foreign countries. The warship had also featured in the International Fleet Review hosted by the Indian Navy in Vishakapatnam last month. Former Indian Navy Chief Admiral Arun Prakash described the US action as a "senseless" and "inflammatory act". "Sinking of Iranian warship, off southern tip of Sri Lanka, with heavy loss of life is a senseless & inflammatory act. Initiating another dimension of violence in this open-ended conflict, will spread alarm across the high seas & disrupt global seaborne commerce. Condemnable!," he said on social media.
Newsinc24 Team





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