TEHRAN — April 19, 2026 : A sequence of conflicting directives and military actions in the Strait of Hormuz has revealed a widening divide between Iran’s diplomatic leadership and the Islamic Revolutionary Guard Corps (IRGC), raising concerns over the reliability of official assurances regarding maritime transit.
On April 17, 2026, Iranian Foreign Minister Abbas Araghchi announced that the Strait of Hormuz was “completely open” to all commercial vessels for the remaining duration of a ceasefire linked to the Lebanon front. The statement, delivered via a post on X, specified that ships must follow designated transit corridors established by Iran’s Ports and Maritime Organisation.
According to the routing plan, vessels were instructed to use two separate entry and exit channels through Iranian territorial waters, running alongside Larak and Qeshm islands and avoiding Omani waters. The announcement was interpreted as a signal of Iran’s compliance with ongoing ceasefire arrangements involving the United States.
However, the IRGC, which maintains operational control over the Strait, was not consulted prior to the declaration. Within hours, on the night of April 17, a message broadcast over international maritime radio Channel 16 by an individual identifying as an IRGC Navy member stated that the Strait would remain closed. The transmission explicitly rejected the authority of the civilian government and indicated that any reopening would occur only under orders from the Supreme Leader.
Subsequently, IRGC naval units moved to enforce the closure. On April 18, heavily armed IRGC gunboats intercepted and opened fire on multiple commercial vessels attempting to transit the waterway. Among the ships targeted were two India-flagged vessels, Sanmar Herald and Jag Arnav. Radio communications indicated that both crews attempted to reference the Foreign Ministry’s clearance but were ordered to withdraw under fire.
The IRGC has confirmed attacks on at least three commercial vessels and issued repeated radio warnings stating that no ships, regardless of nationality, were permitted to pass. The force cited the ongoing U.S. naval blockade of Iranian ports as justification for maintaining the closure. Since the escalation began earlier in the crisis, the IRGC has conducted 21 confirmed attacks on merchant shipping and reportedly deployed sea mines in the area, significantly reducing traffic through the Strait.
The incident underscores the structure of authority within Iran, where the IRGC operates directly under the Supreme Leader rather than the elected government. Following the death of Ali Khamenei in February 2026, his successor Mojtaba Khamenei has remained largely inaccessible due to security conditions. Current reporting indicates that only senior IRGC commanders maintain direct communication with him, while civilian leadership, including the president and foreign ministry, lacks direct access.
This situation has contributed to increased autonomy for the IRGC in both military operations and aspects of foreign policy execution. The lack of coordination between diplomatic and military institutions has complicated Iran’s engagement in negotiations with the United States and regional actors.
The developments also introduce operational risks for international shipping. Maritime authorities have advised heightened caution in the Persian Gulf, noting that clearances issued by Iran’s civilian agencies may not reflect conditions enforced by military units on the ground.
The Strait of Hormuz remains a critical global energy transit route, and the recent sequence of announcements and enforcement actions has created continued uncertainty over its accessibility during the ongoing ceasefire period.
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