Iran Closes Strait of Hormuz After Striking Vessel, Escalating Tensions

Iran's Islamic Revolutionary Guard Corps (IRGC) announced on Sunday it has closed the Strait of Hormuz "until further notice" after striking a vessel it claimed was operating improperly. The move effectively blockades a critical chokepoint for global energy markets and marks a severe escalation of hostilities in the Gulf region.

Waterway Shut After Vessel Incident

The IRGC Navy said in a statement that it struck and halted a vessel that had "jeopardized maritime security by switching off its systems." According to the statement, the ship was part of a group that had disregarded warnings after attempting to use an "unauthorised route."

Tehran linked the reopening of the strait to an "end of U.S. interference in this region." The IRGC also issued a stern warning that any acts of aggression "will be met with a severe response, and new enemy bases in the region will be targeted."

Market Impact and Diplomatic Scramble

The closure threatens to further disrupt global energy markets. Prior to the conflict, approximately one-fifth of the world's oil supply passed through the Strait of Hormuz, and the ongoing instability has already caused energy prices to surge, contributing to global inflation.

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In response, diplomatic efforts are reportedly underway. Oman is helping to mediate, with Iranian Foreign Minister Abbas Araqchi meeting his Omani counterpart to discuss safe passage. According to a CNN report, Oman has presented a draft proposal that would include:

• Free navigation through the strait's southern corridor in Omani territorial waters.
• Vessels transiting the northern corridor in Iranian waters would require prior approval from Iran, though no tolls would be charged.

A Ceasefire in Tatters

This development follows the collapse of a ceasefire earlier in the week. Tensions flared after three Qatari and Saudi commercial tankers came under fire, prompting retaliatory U.S. strikes on Iranian sites, which were followed by Iranian strikes on U.S. military facilities in the Gulf.

On Friday, U.S. President Donald Trump posted on his Truth Social platform that while the U.S. had agreed to continue talks with Tehran, "the Cease Fire is OVER!" The U.S. had already revoked a license authorizing the sale of Iranian crude on Tuesday after the initial tanker attacks.