Event

Sinking of IRIS Dena

4 Mar 2026 · 5.35° N, 80.22° E

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What the records say

When
4 Mar 2026
Kind
Event
Coordinates
5.35° N, 80.22° E

Placed at the coordinates of the event it links, Sinking of IRIS Dena.

Summary

2026 Iran war: The United States nuclear submarine Charlotte SSN-766 sinks the Iranian warship IRIS Dena in the Indian Ocean, off Sri Lanka with a torpedo, resulting in 140 sailors missing.

Sinking of IRIS Dena

2026 Iran war sinking of Iranian ship

During the 2026 Iran war, the Iranian Navy frigate IRIS Dena was torpedoed and sunk by the United States Navy's Los Angeles-class submarine USS Charlotte in the Indian Ocean. A week prior to the attack, Dena concluded its participation in the International Fleet Review 2026, a naval exercise hosted by India, and was returning home when it was attacked and sunk in international waters approximately 19 nautical miles o…

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