Iris Dena Sinks Off Sri Lanka Coast
In a significant military incident, the Iranian frigate Iris Dena sank approximately 40 kilometers off the southern coastline of Sri Lanka on March 4, 2026. The sinking occurred in international waters but within Sri Lanka’s economic zone, leading to immediate rescue operations by the Sri Lankan navy.
Following the incident, Sri Lanka’s navy reported the recovery of 87 bodies and the rescue of 32 sailors from the wreckage of the Iris Dena, which had approximately 180 crew members on board at the time of the sinking. The ship was returning from the 2026 International Fleet Review in India when it met its tragic fate.
According to US Defense Secretary Pete Hegseth, a US submarine was responsible for the sinking of the Iris Dena. Hegseth stated, “An American submarine sunk an Iranian warship that thought it was safe in international waters.” This incident marks a notable escalation in hostilities between the United States and Iran, as it is described as the first sinking of an enemy ship by a torpedo since World War II.
The Iris Dena was equipped with advanced weaponry, including surface-to-air missiles, anti-ship missiles, cannons, machine guns, and torpedo launchers, highlighting the military capabilities of the Iranian navy. The attack has raised concerns regarding maritime security and the potential for further military confrontations in the region.
Details surrounding the exact circumstances leading to the sinking of the Iris Dena remain unconfirmed. However, the Iranian embassy in Colombo has indicated through back channels that they believe their ship had been targeted by a US strike, suggesting a deepening rift between the two nations.
The incident has drawn international attention, with various governments monitoring the situation closely. The implications of this sinking could have far-reaching effects on naval operations and diplomatic relations in the region.
As the situation develops, the Iranian government’s official response to the incident has not yet been confirmed, leaving many questions unanswered regarding the future of US-Iran relations and maritime security in the Indian Ocean.