Iran Escalates Strait of Hormuz Standoff: Tankers Attacked, Global Oil Supply at Risk Amid US Tensions

POLICY WIRE — Global — Iran has reinstated its control over the vital Strait of Hormuz, reversing a brief reopening and initiating aggressive actions by firing upon a commercial tanker attempting to traverse the critical waterway on Saturday.

Tehran concurrently issued a stern warning, declaring its intent to maintain the transit blockade through the strait as long as the United States‘ naval restrictions on Iranian ports remain active.

This sudden escalation at the strategic chokepoint threatens to exacerbate the ongoing global energy crisis and pushes both nations closer to renewed hostilities, despite recent expressions of confidence from mediators regarding a potential diplomatic breakthrough.

Hormuz Escalation Details

The joint military command of Iran confirmed on Saturday that “control of the Strait of Hormuz has returned to its previous state… under strict management and control of the armed forces.” This statement solidified the country’s renewed assertion of authority over the passage.

Two gunboats, identified as belonging to Iran’s Revolutionary Guard, reportedly opened fire on a tanker navigating the Strait of Hormuz. The British military’s United Kingdom Maritime Trade Operations (UKMTO) center confirmed the incident, stating that the vessel and its crew were ultimately safe, though specific details of the ship or its destination were not disclosed.

TankerTrackers.com corroborated reports, indicating that multiple vessels, including an Indian-flagged super tanker, were compelled to reverse course within the strait after encountering gunfire from Iranian forces.

US Stance and International Reactions

The Saturday developments followed a declaration by U.S. President Donald Trump, who affirmed that the American blockade “will remain in full force” until Tehran agrees to a comprehensive deal that includes its controversial nuclear program. This directly contradicted Iran’s prior temporary reopening of the strait for commercial traffic on Friday.

Given that approximately one-fifth of the world’s oil traverses the Strait of Hormuz, these renewed restrictions are expected to tighten an already strained global supply, potentially driving energy prices even higher. This underscores the global economic vulnerability tied to this critical waterway.

India promptly summoned Iran’s ambassador in New Delhi to express “deep concern” following the reports of gunfire targeting two Indian-flagged vessels. India’s foreign secretary urged Tehran to facilitate safe passage for India-bound ships.

Regional Conflicts and Diplomatic Efforts

The escalation in Hormuz occurred even as a 10-day ceasefire between Israel and the Iranian-backed Hezbollah militant group in Lebanon appeared to hold, signaling complex and interconnected regional dynamics.

Tragically, the broader conflict has already claimed significant lives, including at least 3,000 in Iran, nearly 2,300 in Lebanon, 23 in Israel, and over a dozen in Gulf Arab states, alongside thirteen U.S. service members. A French peacekeeper serving with the U.N. force (UNIFIL) in southern Lebanon was killed, and three others wounded, in a small arms attack on Saturday morning, an incident Hezbollah denied involvement in.

Hezbollah leader Naim Kassem criticized a ceasefire document published by the U.S. State Department, dismissing it as an “insult” to Lebanon and emphasizing that his country’s government had neither met nor approved its terms. He insisted a truce should entail a complete cessation of hostilities.

In Gaza, UNICEF suspended operations in the northern Strip after the Israeli military killed two of its contracted truck drivers at a water point, injuring two others. UNICEF stated the incident occurred during “routine, water trucking operations,” while the Israeli military claimed troops fired on suspected militants and was investigating.

Despite these tensions, Pakistani officials maintain that the United States and Iran are nearing a deal ahead of the April 22 ceasefire deadline. Pakistan’s Prime Minister Shehbaz Sharif concluded visits to Saudi Arabia, Qatar, and Turkey, with his office confirming meetings that included briefings on talks with Iranian leadership. This diplomatic outreach highlights Pakistan’s role in complex regional negotiations.

Iranian Conditions and US Rejection

Iran’s Supreme National Security Council confirmed it is reviewing new proposals presented by Pakistan’s army chief during his recent visit to Tehran, though the specifics of these proposals remain undisclosed.

The council emphasized that further talks would necessitate the U.S. abandoning “excessive demands” and adjusting its positions to current regional realities. It reiterated that Iran would maintain full control over Hormuz traffic until the “war fully ends and lasting peace is achieved,” including collecting detailed vessel information, issuing transit certificates, and imposing tolls.

In a direct response, President Donald Trump unequivocally rejected the notion of Iran imposing tolls or restrictions on the Strait of Hormuz, stating firmly, “Nope. No way. No. Nope.”

The U.S. Central Command reported via X (formerly Twitter) that its forces have compelled 23 ships to turn back from the vicinity of the Strait of Hormuz since the blockade on Iranian ports commenced on April 13, enforcing the measures ordered by President Trump.

Outlook on US-Iran Talks

Despite the heightened tensions, President Trump expressed optimism about ongoing discussions, stating, “We have very good conversations going on,” and hinted at more information “by the end of the day.” He characterized Iran’s actions as “a little cute,” in reference to their attempt to close the strait.

Turkish Vice President Cevdet Yilmaz, whose country supports mediation efforts, acknowledged the “complex issues” involved in U.S.-Iran negotiations, suggesting that a comprehensive settlement would be a prerequisite for free navigation through the Strait of Hormuz and emphasizing that these talks would likely “take some time.”

Conversely, Iranian Deputy Foreign Minister Saeed Khatibzadeh dismissed President Trump’s claims regarding enriched uranium and expressed caution about future direct talks with the U.S., citing their “maximalist position” as an impediment.

In a separate development, Iran partially reopened its airspace after a seven-week closure due to military operations. Meanwhile, Pope Leo XIV, speaking aboard the papal plane, clarified that his preaching of peace was not directed at President Trump, despite recent public exchanges, but reflected a broader Gospel message.