US Submarine Sinks Iranian Warship IRIS Dena in Indian Ocean, 87 Reported Dead

At least 87 people were killed after a US submarine sank the Iranian warship IRIS Dena in the Indian Ocean, according to reports.

The frigate had recently participated in the MILAN 2026 in India. US Defence Secretary Pete Hegseth confirmed the submarine strike, calling it the first US torpedo sinking of an enemy ship since World War II.

Authorities in Sri Lanka said 87 bodies have been recovered, while several sailors remain missing and some survivors have been rescued. The incident comes amid the ongoing conflict involving Iran and the United States.