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Iran Conflict 2026
4JUN

Blockade hits 121 ships, one holed

3 min read
11:25UTC

CENTCOM redirected 121 commercial vessels and disabled five to enforce the US blockade on 1 June; the container ship MSC Sariska V was holed by an unidentified projectile in the Gulf.

ConflictDeveloping
Key takeaway

The US naval blockade widened to 121 redirected ships even as the negotiating channel froze.

CENTCOM (US Central Command) confirmed on Monday 1 June that it had redirected 121 commercial vessels and disabled five ships to enforce the US blockade, up from the 116 redirections it logged on 30 May 1. CENTCOM is the US military command running operations across The Gulf. It redirected 121 vessels yet disabled only five, a roughly 4% kinetic share of the ships it stopped, which means most traffic is turned by warning rather than by fire.

The container ship MSC Sariska V was holed by an unidentified projectile in the Persian Gulf on 1 June, a large breach above the waterline, with no claim of responsibility 2. It is the third named commercial vessel struck after the Olympic Life and the Lian Star. No party has claimed the strike, so whether it was the IRGC, a proxy, or stray ordnance stays unconfirmed.

A blockade this wide raises war-risk premiums and, for European and Asian consumers, means dearer goods and slower deliveries. It widened on the precise day diplomacy briefly opened and slammed shut, with Iran's 09:56 talk suspension running in parallel above it. The militaries kept doing what they do regardless of the diplomatic whiplash overhead.

Deep Analysis

In plain English

CENTCOM (US Central Command) is the US military's regional command for the Middle East. It has been stopping commercial ships from entering Iranian ports since mid-April 2026, turning them away and in some cases disabling them. By 1 June it had redirected 121 ships and disabled five. A 'disabled' ship means it cannot move under its own power and must be towed, leaving crew stranded on board. Separately, the container ship MSC Sariska V was hit by an unknown projectile while sailing through the Persian Gulf. No country or group has said they did it. This is the third named civilian cargo ship to be hit in the conflict. When no one claims an attack on a merchant vessel, it complicates insurance claims and leaves the ship's operators, crew and cargo owners in legal limbo.

First Reported In

Update #115 · Iran moves first, Trump moves by phone

CBS News· 2 Jun 2026
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