US submarine sank Iranian warship off Sri Lanka’s coast, Hegseth says
The Guardian World
by Hannah Ellis-Petersen in Delhi and Aanya Wipulasena in ColomboMarch 4, 2026
Defence secretary confirms strike on Iris Dena in first US attack on Iranian forces outside Middle East during conflict
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The US has carried out a submarine torpedo strike that sank an Iranian warship off the south coast of Sri Lanka, according to the US secretary of defence.
Pete Hegseth confirmed that the US was behind the deadly strike on an Iranian frigate that killed more than 80 people, as it was sailing close to the Sri Lankan coast.
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Originally published on The Guardian World on 3/4/2026