The final voyage of the Iranian warship sunk by the US

March 7, 2026

An Iranian naval warship, Iris Dena, was torpedoed and sunk by a US submarine in international waters near Sri Lanka on March 4, just two weeks after participating in a major Indian-hosted multilateral naval exercise in Visakhapatnam. The attack killed at least 87 of the 130 sailors aboard, with only 32 survivors recovered during subsequent rescue operations coordinated by Sri Lanka and India. While the sinking occurred in international waters during an active US-Iran conflict, the incident has created diplomatic tensions for India, which maintains strategic relationships with both Washington and Tehran.

Who is affected

130 Iranian sailors aboard the Iris Dena (87 confirmed dead, 32 survivors)
The Indian Navy and government (diplomatic embarrassment)
Iranian government and military (loss of vessel and personnel)
United States military and government (conducted the attack)
Sri Lanka (rescue operations and subsequent control of another Iranian vessel)
74 countries that participated in the Exercise Milan naval gathering
India's broader strategic community and foreign policy establishment

What action is being taken

Sri Lankan navy is conducting rescue operations in the waters off Galle
Indian Navy has deployed a long-range maritime patrol aircraft to support the search
An Indian naval vessel that was already operating nearby reached the area by late afternoon on March 4
Another Indian ship sailed from Kochi and continues to comb the waters for survivors and debris
Another Indian aircraft with air-droppable life rafts remains on standby
External Affairs Minister S Jaishankar held a telephone conversation with Iranian Foreign Minister Abbas Araghchi
Sri Lanka has taken control of another Iranian naval vessel off its coast after an engine failure

Why it matters

This incident represents a significant escalation and geographic expansion of the US-Israel-Iran conflict into the Indian Ocean region, bringing active warfare to what India considers its maritime neighborhood. The attack undermines India's diplomatic efforts to position itself as the Indian Ocean's "preferred security partner" and exposes limitations in its regional influence, as it could not prevent a military strike against a vessel that had just been its diplomatic guest. The episode highlights India's difficult balancing act between its growing defense partnership with the United States and its longstanding ties with Iran, complicating its foreign policy positioning. The strike also demonstrates American willingness to conduct military operations in regions where other powers claim strategic influence, sending a broader message about US naval power projection capabilities.

What's next

No explicit next steps stated in the article

Read full article from source: BBC