Washington · June 12, 2026
Three Indian nationals died June 10 after U.S. Central Command fired precision munitions into the engine room of the Palau-flagged oil tanker MT Settebello in the Gulf of Oman, marking the first confirmed fatalities since the United States imposed a naval blockade of Iranian ports on April 13 [1][2]. The deceased were identified as deck cadet Aditya Sharma, engine fitter Shivanand Chaurasiya, and chief engineer Patnala Suresh. The vessel was carrying a 28-member crew, including 24 Indian nationals and four foreign nationals: two Pakistanis, one Ukrainian, and one Russian. The Omani Navy responded to the Settebello's distress call after it reported an engine fire following the strike.
CENTCOM framed the strike as a lawful enforcement action under the blockade, which President Donald Trump announced following the collapse of U.S.-Iran nuclear negotiations and took effect April 13. The blockade took effect at the direction of Trump and under the command of Admiral Brad Cooper at CENTCOM, encompassing "the entirety of the Iranian coastline" and subjecting any vessel "entering or departing the blockaded area without authorization" to interception, diversion, and capture. CENTCOM stated that the blockade would be "enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas" but would "not impede freedom of navigation for vessels transiting the Strait of Hormuz to and from non-Iranian ports." In the Settebello strike specifically, CENTCOM said a U.S. aircraft fired precision munitions into the vessel's engine room, and that the tanker had "repeatedly failed" to comply with directions from American forces and was attempting to transport Iranian oil in violation of the blockade.
The Settebello strike was one of at least three interdiction actions against tankers carrying Indian crew members in the span of four days. On June 8, CENTCOM said it had disabled the Palau-flagged MT Marivex, which is sanctioned by the United States, because it was "attempting to sail to an Iranian port." On June 11, CENTCOM said it had disabled the Guinea-Bissau-flagged MT Jalveer for "attempting to transport Iranian oil." CENTCOM confirmed strikes on the Settebello and the Marivex but had not, as of Thursday, commented on reported strikes on the Jalveer. CENTCOM reported it has disabled nine vessels and redirected 135 others since the blockade began on April 13.
India's response was swift and carried formal diplomatic weight. India's Ministry of External Affairs summoned U.S. Chargé d'Affaires Jason Meeks on Wednesday, with Additional Secretary for the Americas Nagaraj Naidu conveying India's concerns over the safety of its seafaring community. Ministry of External Affairs spokesperson Randhir Jaiswal confirmed at an inter-ministerial briefing that India "lodged a strong protest with the American side" and that Meeks was conveyed India's "deepest concern over the ongoing incidents of attacks," with Jaiswal emphasizing these attacks "must stop." Jaiswal further stated that "dialogue and diplomacy is the way forward for the peaceful resolution of the conflict, and that there should be unimpeded access through the Strait of Hormuz in accordance with international law."
The incident surfaces the legal exposure created by U.S. enforcement action against foreign-flagged, commercially crewed vessels. Ships being targeted by the U.S. blockade include Iranian vessels as well as shadow fleet tankers, which are typically older vessels without Western insurance used to transport sanctioned oil and sailing under the flags of various nations to obscure their true ownership, cargo, and movements. India has not conceded that the Settebello's alleged conduct justified the use of lethal force against a commercial crew, and New Delhi's invocation of "international law" and "freedom of navigation" signals a potential challenge under the Law of the Sea framework, which governs the rights of neutral nations and civilian mariners in conflict zones. International Maritime Organization Secretary-General Arsenio Dominguez said Wednesday that he "strongly condemn[s] any act from any party that endangers the lives of seafarers and the safety of international shipping," calling any such action "simply unacceptable."
The diplomatic fallout lands at a sensitive moment for the U.S.-India relationship. The strikes on vessels carrying Indian seafarers come ahead of next week's Group of Seven summit, where Indian Prime Minister Narendra Modi is expected to hold bilateral talks with Trump. India is the world's third-largest supplier of seafarers, with more than 300,000 sailors working in global shipping fleets, according to government data. India's Shipping Ministry reported that more than 18,000 Indian sailors are currently in the Gulf region, with 13 Indian vessels stranded in the Strait of Hormuz. The deaths represent the first known instance in which U.S. military enforcement of the blockade has killed nationals of a partner nation, and India's summoning of the U.S. chargé d'affaires, rather than the ambassador, reflects deliberate calibration of the protest's diplomatic weight.
References
[1] CBS News. (2026, June 12). India voices "strong protest" over 3 of its mariners being killed in U.S. strikes on oil tankers. https://www.cbsnews.com/news/iran-war-us-oil-tankers-attacked-india-protest-mariners-killed/
[2] i24NEWS. (2026, June 12). Three tankers, three strikes: Indian sailors caught in crossfire as US blockade claims first lives off Oman. https://www.i24news.tv/en/news/international/americas/artc-three-tankers-three-strikes-indian-sailors-caught-in-crossfire-as-us-blockade-claims-first-lives-off-oman
[3] The Tribune India. (2026, June 12). 'US Navy attacked 3 merchant vessels with Indian seafarers in Gulf region; issue taken up with US'. https://www.tribuneindia.com/news/india/us-navy-attacked-3-merchant-vessels-with-indian-seafarers-in-gulf-region-issue-taken-up-with-us/
[4] Asianet Newsable. (2026, June 12). India summons US diplomat over strike on tanker with Indian seafarers. https://newsable.asianetnews.com/world/india-summons-us-diplomat-over-strike-on-tanker-with-indian-seafarers-articleshow-ip5gn76
[5] Daily Pioneer. (2026, June 12). 3 Indian sailors killed in US strike on oil tanker near Oman coast. https://dailypioneer.com/news/3-indian-sailors-killed-in-us-strike-on-oil-tanker-near-oman-coast
[6] Baird Maritime. (2026, June 12). India confirms three of its sailors died in US tanker strike, another incident reported. https://www.bairdmaritime.com/security/incidents/india-confirms-three-of-its-sailors-died-in-us-tanker-strike-another-incident-reported
[7] The Jerusalem Post. (2026, June 12). US strikes to enforce Strait of Hormuz blockade kill three Indian sailors. https://www.jpost.com/middle-east/iran-news/article-899099
[8] Radio Free Europe/Radio Liberty. (2026, June 12). 3 Indian sailors dead after US strike on tanker off coast of Oman. https://www.rferl.org/a/iran-war-us-hormuz-oil-blockade-gulf-israel/33640284.html