Iran’s military command has closed the Strait of Hormuz again, the country announced on Saturday in a statement carried on state television, citing the continuation of the United States naval blockade of ships sailing to and from Iranian ports as a violation of a promise made by Washington.
The closure reverses the dramatic opening announced by Foreign Minister Araghchi on Friday evening that had sent crude oil crashing over 11% and triggered a broad global market rally. The announcement comes less than 24 hours after Araghchi’s post on X declared the Strait “completely open” to all commercial vessels for the ceasefire period and Trump confirmed the development with a public “Thank you.”
In its statement, Iran said Washington had broken a promise by maintaining its naval blockade of Iranian ports even as Tehran fulfilled its side of the arrangement by opening the Strait to commercial traffic. The US naval blockade, which came into effect on April 13, has been turning away vessels from Iranian ports and was explicitly described by Trump on Friday evening as remaining “in full force and effect” until the deal with Iran is “100% complete.”
What Has Happened in the Past 24 Hours
The sequence is now clear. Iran opened the Strait on Friday evening as a goodwill gesture explicitly linked to the Lebanon ceasefire holding. Trump confirmed the opening but simultaneously stated the naval blockade on Iranian ports specifically would stay in place until the deal is fully concluded. Iran has now interpreted the continuation of that blockade as a broken promise — arguing that the arrangement it understood was that the Strait opening would be met with a suspension or relaxation of the naval pressure on its own ports.
Washington’s position, as stated by Trump on Friday, was the opposite — that the blockade would remain until the deal is 100% complete, with the Strait’s opening representing Iranian movement toward that completion rather than a trigger for lifting the blockade.
The two sides appear to have had fundamentally different understandings of what Friday evening’s exchange of gestures meant and obligated each party to do. That misalignment has now produced the worst possible outcome — a Hormuz closure that markets had already fully priced out, now reinstated within hours.
Market Implications
The oil crash of over 11% that followed Friday’s Hormuz opening will partially reverse when Asian and European markets open. WTI had fallen to $83.84 and Brent to $89.09. Both benchmarks can be expected to recover sharply toward pre-announcement levels as the closure is digested by trading desks. MCX Crude, which had crashed to ₹7,909, will open sharply higher when Indian commodity markets next trade.
Gift Nifty had surged 245 points to 24,665 on the back of Friday’s Hormuz news. That indication will weaken materially when the closure news is fully priced in ahead of Monday’s Indian market open.
Gold, which had risen 2% to near $4,903 on Friday partly on the monetary and inflation recalibration trade, may retain more of its gains than crude retains its losses — given that gold’s move was driven by real rate expectations and dollar weakness in addition to the geopolitical repricing. Silver’s industrial demand gains are more directly tied to the Hormuz open and will face pressure.
The Diplomatic Situation
The ceasefire expires on approximately April 21-22 — three to four days away. Pakistan Army Chief Asim Munir was scheduled for a second meeting with Araghchi in Tehran today. An unnamed Iranian official had told Reuters earlier on Saturday that Tehran hoped to reach a preliminary agreement with the United States “in the coming days.”
The Hormuz reclosure is a severe blow to that timeline. It signals that the gap between Washington and Tehran on what constitutes acceptable behaviour during the ceasefire period is large enough that even a major goodwill gesture — the Hormuz opening — could not survive 24 hours before being reversed over a perceived violation.
The onus now falls on Pakistan’s mediation to prevent this reversal from becoming a full diplomatic breakdown before the ceasefire expires. If Munir’s talks with Araghchi today cannot produce a shared understanding of what each side’s obligations are during the remaining ceasefire period, the window for a preliminary agreement that the Iranian official described to Reuters this morning narrows dramatically.
Business Upturn is monitoring this developing situation and will update this report as further information becomes available.
Disclaimer: This article is based on breaking reports from Iran state television and is for informational purposes only. Geopolitical situations are subject to rapid change. Readers are advised to follow official government communications for the most current verified information.