
International Maritime Organization
UN shipping agency coordinating the 2026 Hormuz blockade response and global autonomous-ship safety rules.
By 21 October, the International Maritime Organization counted 24 seafarers killed and about 6,000 still trapped behind the strait of Hormuz, making crew safety its central wartime task.
Last refreshed: 22 October 2026 · Appears in 2 active topics
Why does the IMO say 500 stranded ships must clear Hormuz before mine clearance can start?
Timeline for International Maritime Organization
Mentioned in: IRGC says it hit 4 oil transfer ships
Iran Conflict 2026Counted 119 incidents and 24 seafarers killed
Iran Conflict 2026: UKMTO confirms one tanker hit near BukhaCounted GFS Pride as the third merchant ship sunk
Iran Conflict 2026: GFS Pride sinks in the Strait of HormuzHeld a confirmed register that closed before this death was counted
Iran Conflict 2026: Torpedoes kill an Indian wiper off OmanMentioned in: Indian Register clears navy USV software
Autonomous Systems: Land & SeaBackground
The International Maritime Organization is the United Nations agency for international shipping. Based in London, it brings member states together to set rules for maritime safety, security and pollution. Its main instruments include the Safety of Life at Sea Convention and the collision-prevention rules.
The IMO writes standards and coordinates states, but it does not command navies or compel passage through contested waters. That limit matters during armed conflict: the organisation can maintain an incident record, organise evacuation plans and issue guidance, while coastal states and military forces decide whether ships can use a route. Its casualty count provides a common public record across fragmented reports.
The IMO tracks trapped crews
By 21 October, the International Maritime Organization counted 24 seafarers killed in the conflict and about 6,000 still stranded on ships behind the strait of Hormuz. The figures made crew safety a continuing humanitarian task rather than a consequence measured only by damaged hulls.
The organisation had begun coordinating evacuation for roughly 11,000 seafarers on 23 June. Iran's Revolutionary Guard then rejected the Oman-IMO corridor and told ships to coordinate with Iranian forces. For the IMO, the gap remains structural: it can coordinate guidance and records, but armed actors control passage.
Its autonomous code leaves gaps
The IMO adopted the first global code for crewless cargo ships on 22 May. It kept a human master legally responsible from ashore, creating a common international starting point for ships able to operate with no crew aboard.
The non-mandatory code entered force on 1 July, while its experience-building framework remained deferred until a December committee meeting. For the IMO, adoption therefore set the legal direction without settling the operational evidence needed for a future mandatory regime.
The IMO tracks trapped crews
What is the IMO's role in the Strait of Hormuz crisis?
How many seafarers did the IMO evacuate from the Persian Gulf in June 2026?
Its autonomous code leaves gaps
Does the IMO MASS Code require a captain on board autonomous ships?
What is the IMO MASS Code and when does it come into force?
When did the IMO's MASS Code for autonomous ships enter force?
Reference
What is the IMO's 1968 Hormuz Traffic Separation Scheme?
What enforcement power does the IMO have over the Strait of Hormuz?
Why does the IMO say 500 ships must be evacuated before Hormuz mine clearance?
What is the IMO Hormuz corridor and why did Iran reject it?
How many ships are stuck in the Gulf because of the Iran blockade?
Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 22 October 2026. Editorial standards.