JUST IN: IRGC Declares Strait of Hormuz Closed Again, Blaming U.S. Violation of Ceasefire – Shipping Restricted Until Blockade Lifted

Reflecto News
April 19, 2026

Iran’s Islamic Revolutionary Guard Corps (IRGC) Navy has announced the re-closure of the Strait of Hormuz, reversing a brief reopening announced just 24 hours earlier. The IRGC cited the ongoing U.S. naval blockade of Iranian ports as a clear “violation of the ceasefire,” warning that the strategic waterway will remain closed until Washington fully lifts its restrictions on Iranian shipping.

In a statement carried by Iranian media and confirmed by international outlets, the IRGC Navy declared: “Following the violation of ceasefire conditions by the American enemy and its failure to lift the naval blockade, the Strait of Hormuz has returned to its previous state of control.” It instructed all vessels in the Persian Gulf and Sea of Oman to remain at anchor and warned that any ship attempting to approach or transit the strait without IRGC authorization “will be considered cooperation with the enemy and will be targeted.”

This dramatic reversal comes less than a day after Iran’s Foreign Ministry had signaled a limited reopening for commercial traffic as a goodwill gesture during the fragile U.S.-Iran ceasefire. Reports also indicate that IRGC gunboats fired on at least two commercial vessels (including an Indian-flagged tanker) attempting to pass, causing damage but no reported injuries.

U.S. Response and Blockade Status

President Donald Trump has maintained that the U.S. naval blockade — enforced since April 13 — will remain in full force until a satisfactory deal is reached, including verifiable limits on Iran’s nuclear program. U.S. Central Command (CENTCOM) confirmed that American forces have turned away multiple vessels attempting to enter or exit Iranian ports, describing the operation as successful in applying pressure without major incidents so far.

Trump previously dismissed Iranian threats over the strait, stating Iran “cannot blackmail” the United States and that the blockade serves as leverage for negotiations.

Impact on Global Energy and Shipping

The Strait of Hormuz handles roughly 20-30% of the world’s seaborne oil trade. Its effective closure has already contributed to volatile oil prices and heightened concerns over Europe’s jet fuel supplies, with International Energy Agency head Fatih Birol warning of potential shortages within weeks if disruptions persist.

Shipping companies and insurers are on high alert, with several vessels reported to have aborted transits or diverted routes. The brief reopening on Friday had allowed limited traffic, but the swift re-closure has sent shockwaves through energy markets.

Diplomatic Context

The announcement escalates tensions as:

• Mediators, led by Pakistan, push for a short extension of the current two-week U.S.-Iran ceasefire (due to expire around April 22) to allow up to six months for a comprehensive deal.
• Parallel tracks include the active 10-day Israel-Lebanon ceasefire and planned White House talks between Lebanese President Joseph Aoun and Israeli Prime Minister Benjamin Netanyahu.
• Field Marshal Asim Munir’s recent meetings in Tehran with Iranian President Masoud Pezeshkian and other officials aim to deliver U.S. messages and narrow gaps on nuclear issues, sanctions, and maritime security.

Gulf and European officials have urged swift de-escalation, warning that prolonged closure of the strait could derail broader peace efforts.

What’s Next?

The coming hours and days will test the ceasefire’s durability. Pakistani mediation continues, with expectations of further high-level engagement. Any major incident involving commercial shipping could trigger rapid escalation, while progress on nuclear verification and sanctions relief remains critical for reopening the strait.

Reflecto News will provide live updates on the Strait of Hormuz situation, IRGC actions, U.S.-Iran diplomatic channels, energy market reactions, and related regional stories including the Israel-Lebanon ceasefire.

Frequently Asked Questions (FAQs)

Q1: Why has the IRGC closed the Strait of Hormuz again?
A: The IRGC cites the continued U.S. naval blockade of Iranian ports as a violation of the ceasefire agreement. It states the strait will remain closed until the blockade is fully lifted.

Q2: What does the closure mean for shipping?
A: Vessels are instructed to remain at anchor. Any attempt to approach or transit the strait without IRGC coordination risks being targeted. Reports confirm gunboat incidents involving commercial ships.

Q3: How long will the closure last?
A: The IRGC has tied the reopening directly to the lifting of the U.S. blockade, with no fixed timeline provided.

Q4: What is the status of the U.S.-Iran ceasefire?
A: The two-week ceasefire is under significant strain and faces a looming deadline around April 22. Mediators are seeking a short extension while pursuing longer-term talks that could last up to six months.

Q5: How has the U.S. responded?
A: President Trump has insisted the blockade will continue as leverage until a deal is reached and dismissed Iranian actions as attempts at blackmail.

Q6: What are the global implications?
A: Renewed closure risks higher oil prices, supply chain disruptions, and worsened energy shortages (including Europe’s jet fuel concerns). It also complicates parallel diplomatic efforts in the region.

For continuous coverage of the Strait of Hormuz crisis, U.S.-Iran negotiations, Pakistani mediation, and Middle East energy security, bookmark Reflecto News.

This article is based on statements from the IRGC Navy, reports from Reuters, BBC, CNN, Al Jazeera, and other verified international sources as of April 19, 2026.