Three ships with Indian crew attacked by the US in three days: What we know

Over three consecutive days (June 8–11, 2026), US military forces struck three separate commercial oil tankers carrying predominantly Indian crews in the Str...

What Happened

Over three consecutive days (June 8–11, 2026), US military forces struck three separate commercial oil tankers carrying predominantly Indian crews in the Strait of Hormuz and Gulf of Oman as part of blockade enforcement operations against Iran-linked shipping.
June 8: Palau-flagged MT Marivex, carrying 24 Indian seafarers, was disabled by US forces after allegedly continuing towards an Iranian port despite blockade instructions; all crew were safely rescued.
June 10: Palau-flagged MT Settebello was struck; three Indian sailors were killed — the first confirmed Indian fatalities in the crisis — while 21 Indians were rescued by Omani authorities.
June 11: Guinea-Bissau-flagged MT Jalveer came under attack, with all 20 Indians on board safely evacuated.
The US described the strikes as enforcement of its naval blockade, asserting the vessels were in violation of restrictions related to Iranian port access; India's MEA disputed the targeting of civilian commercial shipping and lodged strong formal protests.
India's Ministry of External Affairs summoned the US Chargé d'Affaires twice in three days and called for an immediate halt to attacks on commercial shipping.

Static Topic Bridges

2026 Strait of Hormuz Crisis — Context and Sequence

The 2026 Strait of Hormuz crisis began on 28 February 2026, following US and Israeli military operations against Iran, including strikes on Iranian nuclear infrastructure and the killing of Iran's Supreme Leader. In retaliation, Iran launched missile and drone strikes against US military bases, Israel, and Gulf states, and the Iranian Revolutionary Guard Corps (IRGC) declared the Strait of Hormuz closed to "unfriendly nations." The IRGC began attacking and boarding merchant ships and laid sea mines in the waterway. From 19 March 2026, the US launched an aerial and naval campaign to reopen the Strait; from 13 April to 29 May 2026, the US enforced a naval blockade of Iranian ports.

Strait of Hormuz closed by Iran: 28 February 2026 (first actual closure — earlier closures had been threatened but not implemented, e.g., in 2011–12).
US aerial campaign to reopen the Strait began: 19 March 2026.
US naval blockade of Iranian ports: 13 April – 29 May 2026.
46 verified attacks on international shipping in the waterway as of early June 2026; 14 confirmed seafarer fatalities.
Ceasefire negotiations brokered by Pakistan provided a partial framework but did not fully halt hostilities.
The three tanker strikes on Indian-crewed vessels occurred during ongoing ceasefire talks, drawing international condemnation.

Connection to this news: The three specific incidents involving Indian crews are part of a sustained US blockade enforcement campaign in a warzone waterway, representing a direct threat to Indian maritime workers and the country's energy supply security.

Naval Blockade Under International Law

A naval blockade is a military operation designed to prevent ships from entering or exiting an enemy's ports, coasts, or waterways. Under customary international law and the San Remo Manual on International Law Applicable to Armed Conflicts at Sea (1994), a blockade is only "lawful" if it is declared and notified to all states, effective (actually enforced), non-discriminatory, and does not cut off neutral civilian populations from essential supplies. Neutral merchant vessels may be subject to search and, in limited circumstances, seizure — but the rules for attacking a civilian vessel are strict under international humanitarian law (IHL).

A "lawful blockade" under the San Remo Manual (Rule 93–104) requires: formal declaration, notification to belligerents and neutral states, effectiveness, and proportionality; starvation of civilian populations is prohibited.
Neutral merchant vessels (ships from non-belligerent states) may be captured or diverted if found violating a lawful blockade, but the legality of kinetic strikes (armed attacks) on civilian merchant vessels carries a much higher legal threshold.
The UN Security Council has not authorised the US naval blockade through a Chapter VII resolution, raising questions about its status in international law.
Under IHL (Geneva Convention IV, 1949, Additional Protocol I, 1977), civilian objects — including merchant vessels — are protected from direct attack unless they directly contribute to military operations.
The US position: the blockade is a legitimate military operation in the context of the ongoing armed conflict with Iran.

Connection to this news: India's protests invoke the principle that Indian nationals on third-flag neutral commercial vessels transiting or operating near the Strait are protected persons under IHL, and that strikes killing them require legal justification that has not been publicly provided.

India's Maritime Security Interests and Strategic Autonomy

India's maritime security doctrine, articulated in the Indian Maritime Security Strategy (2015) and successive documents, identifies the Indian Ocean Region (IOR) as the primary zone of strategic interest. India has maritime interests in ensuring freedom of navigation, protecting Indian seafarers, safeguarding energy supply lines, and preventing any single power's dominance over key chokepoints. India's "strategic autonomy" principle in foreign policy means it does not automatically align with any major power bloc and asserts independent positions on international issues affecting its national interest.

India's maritime security doctrine covers a primary zone (Indian Ocean) and secondary zone extending to the Persian Gulf, Red Sea, and Southeast Asia.
The Indian Navy operates under the Indian Maritime Security Strategy (IMSS 2015); an updated strategy has been under development.
India is a member of the Indian Ocean Naval Symposium (IONS) and has bilateral maritime cooperation agreements with several IOR states and the US (LEMOA, COMCASA, BECA).
India's Persian Gulf dependence: approximately 40% of India's crude imports transit the Strait of Hormuz; the Gulf region hosts approximately 8–9 million Indian migrant workers.
India has not joined Western sanctions against Iran and has maintained diplomatic engagement with Tehran, reflecting its strategic autonomy posture.

Connection to this news: The attacks on Indian-crewed vessels expose the vulnerability of India's energy supply chain and its large diaspora of maritime workers to conflicts in the Persian Gulf — a region India has strong interests in but limited military reach over, underscoring the limits of strategic autonomy in crises driven by major power conflict.

Merchant Shipping and the Flag State System

Under international maritime law, a merchant vessel's nationality is determined by its flag state — the country where it is registered. The flag state exercises primary jurisdiction and responsibility over the vessel at sea. MT Marivex and MT Settebello were registered in Palau; MT Jalveer in Guinea-Bissau. These are "open registries" or "flags of convenience" (FOC) — states that offer vessel registration to foreign ship owners with minimal regulatory requirements and lower costs. The crew nationality (predominantly Indian) is independent of the flag state.

Palau and Guinea-Bissau are open-registry flag states with large international shipping registrations.
The world's largest ship registries (by tonnage) are Panama, Liberia, Marshall Islands, Hong Kong, and Bahamas — all open registries.
India's own ship registry is relatively small; most tankers carrying Indian crew are registered under FOC flags.
Flag state responsibilities include: ensuring vessels comply with SOLAS, MARPOL, and STCW conventions; maintaining vessel documentation; and investigating accidents and incidents.
The disconnect between the flag state (Palau/Guinea-Bissau) and the crew nationality (India) means that formal diplomatic protests must be lodged by India as the "state of nationality of the seafarers" rather than the flag state.

Connection to this news: India's standing to protest the attacks comes from the nationality of its seafarers — not from being the flag state — illustrating how the flag state system can create gaps in protection for maritime workers from third countries employed on FOC vessels.

India's Diplomatic Protest Mechanism and Consular Protection

When Indian nationals are in danger abroad or in international waters, the MEA exercises its consular protection function. This involves formal diplomatic steps: demarches, note verbales, summoning of foreign diplomats, and public statements. The practice of summoning a foreign diplomat (Chargé d'Affaires in the absence of an ambassador) is the most visible expression of a formal bilateral protest. A second summoning within days signals escalation beyond routine diplomatic communication.

The Vienna Convention on Diplomatic Relations (VCDR, 1961) governs the practice of diplomatic protests; a "note verbale" is the formal written protest instrument.
A Chargé d'Affaires (CDA) acts as the head of mission in the absence of the ambassador; receiving a protest from the host country's foreign ministry carries the same diplomatic weight.
India summoned the US CDA twice in three days — an unusually rapid escalation indicating the severity of India's concern.
MEA's public statement demanded that "attacks on commercial shipping must cease" — a call directed at both the US (which conducted these strikes) and the broader international community.
India has also raised the issue through multilateral channels, with the IMO and UN Secretary-General both condemning the attacks.

Connection to this news: India's rapid two-fold summoning of the US envoy and deployment of both bilateral and multilateral diplomatic channels reflects the scale of the threat to Indian nationals and the high diplomatic stakes of Indian seafarers' deaths at the hands of a close strategic partner.

Key Facts & Data

MT Marivex: Palau-flagged, 24 Indian crew, struck June 8, all rescued
MT Settebello: Palau-flagged, struck June 10, 3 Indian killed, 21 Indians rescued by Oman
MT Jalveer: Guinea-Bissau-flagged, struck June 11, 20 Indians safely evacuated
Hormuz crisis start: 28 February 2026
US blockade of Iranian ports: 13 April – 29 May 2026
Total verified attacks on shipping in crisis (by June 2026): 46
Total seafarer fatalities in crisis (by June 2026): 14
Indian seafarers in global maritime workforce: ~1.7 lakh (170,000)
Indian migrant workers in the Gulf region: ~8–9 million
India's crude oil import share from Strait of Hormuz corridor: ~40%
India's crude oil import dependency: ~81.4%
UNCLOS transit passage provisions: Articles 37–44
San Remo Manual on IHL at Sea: 1994 (non-binding but authoritative)
VCDR (diplomatic protest mechanism): adopted 18 April 1961, in force 24 April 1964
Indian Maritime Security Strategy (IMSS): 2015
US-India logistics agreement: LEMOA (Logistics Exchange Memorandum of Agreement), signed 2016