New Delhi, March 5 -- The Indian Navy has deployed INS Tarangini and INS Ikshak, along with maritime patrol aircraft, to assist in the Sri Lanka-led search and rescue operations for the Iranian frigate IRIS Dena, which sank on Wednesday after being struck by a US submarine torpedo.

The vessel sank on March 4, 2026, approximately 20 nautical miles west of Galle, after reportedly being struck by a torpedo from a United States submarine.

"A distress call from IRIS Dena was received at the MRCC Colombo in the early hours of 04 March 26, as reported by the Sri Lankan Navy. The ship was operating 20 NM West of Galle in the SAR region under Sri Lankan responsibility. On receipt of the information, the Indian Navy promptly launched its SAR effo...