A US submarine sank the Iranian warship IRIS Dena in the Indian Ocean off Sri Lanka on March 4, 2026, killing 83 people and escalating the Iran-US conflict closer to India. Indian officials rejected claims of US use of Indian ports, while opposition leaders criticized the government's silence. The incident has caused flight disruptions and economic concerns for India.
The sinking of the Iranian naval ship IRIS Dena by a US submarine on March 4, 2026, in international waters off Sri Lanka's coast marked a significant escalation in the ongoing conflict between the US, Israel, and Iran. The warship, which had participated in India's International Fleet Review in Visakhapatnam in February 2026, was torpedoed, resulting in at least 83 deaths. US Defense Secretary Pete Hegseth confirmed the strike, describing it as giving the vessel a 'quiet death.' This was reported as the first US submarine 'kill' since World War II.
India's Ministry of External Affairs dismissed claims by former US Army Colonel Douglas Macgregor that the US was using Indian ports for attacks on Iran, calling them 'baseless and fabricated.' The IRIS Dena had been a guest of the Indian Navy from February 16 to 25 but did not request assistance after the conflict declaration on February 28.
Opposition leaders reacted strongly. Congress MP Rahul Gandhi criticized Prime Minister Narendra Modi's silence, stating, 'The conflict has reached our backyard, with an Iranian warship sunk in the Indian Ocean.' He highlighted threats to India's oil supplies, noting over 40% of imports transit the Strait of Hormuz. Congress leader Jairam Ramesh called the government's response 'timid and fearful,' pointing to enormous implications for India.
The incident has broader repercussions. RBI MPC member Nagesh Kumar warned of immediate challenges including oil price hikes, export disruptions to West Asia, and potential remittance losses, though long-term growth remains unaffected. Inflation remains benign at 1.3% CPI in December 2025, projected at 2.5% for FY2026.
Flight disruptions are severe, with over 1,500 cancellations globally on March 5, affecting stranded Indians in Dubai, Doha, and Jordan. Emirates cancelled 338 flights, Qatar Airways 241. Travelers like Anirudh Nair in Dubai and Priyanka Sharma in Doha reported difficulties rebooking, with ticket prices soaring. Sri Lanka provided search and rescue, but questions arose about India's role in the effort.
