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International Relations June 10, 2026 5 min read Daily brief · #2 of 32

India condemns attack on Indian-crewed tanker off Oman coast. 3 missing, 21 rescued

The oil tanker *Settebello* (Palau-flagged) came under attack approximately 20 nautical miles northeast of Sohar, Oman, on June 10, 2026, resulting in a fire...


What Happened

  • The oil tanker Settebello (Palau-flagged) came under attack approximately 20 nautical miles northeast of Sohar, Oman, on June 10, 2026, resulting in a fire in the engine room.
  • All 24 crew members aboard were Indian nationals; 21 were rescued and 3 remained missing following the incident.
  • India's Ministry of External Affairs formally condemned the attack, with the Indian Embassy in Oman coordinating closely with Omani authorities on search and rescue operations.
  • The incident occurred amid a US naval blockade of Iran (in effect since mid-April 2026) in which US forces have intercepted or struck vessels suspected of violating the blockade.
  • This was the second attack on a commercial vessel in the Strait of Hormuz / Gulf of Oman region within three days; earlier, on June 8, the US Navy struck the MT Marivex, a Palau-flagged vessel, in contested Strait of Hormuz waters. All 24 Indian crew aboard that vessel were safely evacuated.

Static Topic Bridges

India's Maritime Security Interests and the Arabian Sea

India's maritime security interests in the Indian Ocean Region (IOR) are shaped by its status as the world's third-largest crude oil importer and the location of key sea lanes of communication (SLOCs) through the Arabian Sea. Approximately 45% of India's crude oil imports (pre-crisis) transited the Strait of Hormuz. The Arabian Sea approaches are also critical for India's trade: over 75% of India's trade by volume passes through maritime routes. India's Western Naval Command (headquartered in Mumbai) is responsible for patrolling and securing the Arabian Sea and approaches to the Persian Gulf. India has deployed naval vessels for anti-piracy operations in the Gulf of Aden since 2008 under Operation Sankalp (revived 2019) and has conducted naval escort missions for Indian-flagged and Indian-crewed vessels.

  • India's crude oil imports (pre-crisis): ~45% through the Strait of Hormuz
  • India ranks: third-largest crude oil importer, fourth-largest refiner, fifth-largest exporter of petroleum products globally
  • India's LPG imports through Hormuz: ~90%; LNG imports through Hormuz: >50%
  • Western Naval Command (INS Hansa, Goa; operational HQ Mumbai): responsible for Arabian Sea security
  • Operation Sankalp: Indian Navy anti-piracy/escort mission revived in June 2019 in response to Gulf of Oman tanker attacks
  • India is not a party to a formal naval alliance but participates in multinational maritime exercises (Malabar, MILAN)

Connection to this news: The attack on an Indian-crewed vessel in the Gulf of Oman directly exposes India's vulnerability: Indian seafarers staff a significant portion of the global merchant fleet, and the region transits energy supplies critical to India's economy.

India's Seafarer Community — Global Significance

India is one of the world's largest suppliers of seafarers to the global merchant navy. According to the Directorate General of Shipping, India has approximately 240,000 active seafarers, making it the second-largest supplier globally after the Philippines. Indian seafarers work on vessels registered under various flags — including flags of convenience such as Panama, Liberia, Marshall Islands, and Palau (as in this case). The flag of convenience (FoC) system allows ship owners to register vessels in countries with lower regulatory standards and taxes; ships so registered fly the flag of the state of registration, and that state bears primary legal responsibility for the vessel.

  • India: second-largest supplier of seafarers globally (~240,000 active)
  • Directorate General of Shipping (DGS): nodal agency under Ministry of Ports, Shipping and Waterways; issues Continuous Discharge Certificates (CDCs) to Indian seafarers
  • Palau: flag of convenience (FoC) registry; primary jurisdiction for vessel registration; not the nationality of crew
  • UNCLOS Article 94: duties of the flag state — including safety standards, labour conditions, and casualty investigations
  • Maritime Labour Convention (MLC), 2006 (ILO): sets global minimum standards for seafarers' working and living conditions; India ratified in 2015

Connection to this news: The 24 Indian crew members were employed on a Palau-flagged vessel — illustrating the flag-of-convenience dynamic in which Indian seafarers' welfare is governed by a combination of Indian labour law, the flag state's regulations, and international conventions.

The US naval blockade of Iran (declared mid-April 2026) has created a contested legal environment for commercial shipping in the Persian Gulf and Gulf of Oman. Under UNCLOS, commercial vessels transiting international straits have guaranteed rights of transit passage (Article 38). A naval blockade, when conducted during armed conflict, is recognised under the laws of naval warfare, but must: (i) be formally declared, (ii) be enforced impartially without discrimination based on flag state, (iii) not cut off neutral states from access to essential goods. Critics of the US blockade have argued that striking commercial vessels not listed on the US Treasury's Office of Foreign Assets Control (OFAC) sanctions list is inconsistent with established laws of naval warfare, particularly the principle of distinction between military objectives and civilian objects.

  • UNCLOS Article 38: transit passage rights through international straits
  • UNCLOS Article 110: permissible grounds for boarding foreign vessels on the high seas (sanctions evasion not included)
  • US OFAC (Office of Foreign Assets Control): designates sanctioned entities and vessels; vessels not on OFAC's SDN (Specially Designated Nationals) list are legally commercial vessels under US law
  • Geneva Convention IV and Additional Protocol I, Article 52: distinction between military objectives and civilian objects
  • India's statement: the Settebello was not on the US OFAC sanctions list

Connection to this news: India's protest specifically noted that the Settebello was not an OFAC-sanctioned vessel, making the legal basis for the US strike contested under both international maritime law and US domestic sanctions law.

Key Facts & Data

  • Vessel: Settebello (Palau-flagged oil tanker); flag of convenience registration
  • Location of attack: ~20 nautical miles northeast of Sohar, Oman
  • Crew: 24 Indian nationals; 21 rescued; 3 missing
  • India's crude oil imports through Hormuz (pre-crisis): ~45%
  • India's LPG imports through Hormuz: ~90%
  • India's active seafarers: ~240,000 (second-largest globally)
  • US naval blockade of Iran: in effect since mid-April 2026
  • UNCLOS Article 38: transit passage rights; Article 110: boarding rights on high seas
  • Maritime Labour Convention (MLC), 2006 (ILO): India ratified 2015
  • Second incident in three days: MT Marivex struck June 8, 2026 (all 24 Indian crew safely evacuated)
On this page
  1. What Happened
  2. Static Topic Bridges
  3. India's Maritime Security Interests and the Arabian Sea
  4. India's Seafarer Community — Global Significance
  5. The Strait of Hormuz Crisis — Legal Status of Commercial Vessels
  6. Key Facts & Data
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