Maritime tensions escalated near the Strait of Hormuz on Thursday after a vessel anchored off the United Arab Emirates was seized and taken toward Iranian waters, while another ship was attacked and later sank off the coast of Oman.

The British military’s United Kingdom Maritime Trade Operations (UKMTO) centre said the seized vessel was taken by “unauthorised personnel” while anchored around 38 nautical miles northeast of Fujairah, a key UAE port near the Strait of Hormuz.

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According to the UKMTO, the ship was subsequently seen moving toward Iranian territorial waters. No group or country immediately claimed responsibility for the seizure.

The incidents came amid renewed Iranian assertions over the strategic waterway, with senior officials in Tehran reiterating the country’s claim to the Strait of Hormuz and defending what they described as Iran’s right to seize oil tankers linked to the United States.

Separately, authorities said another vessel came under attack on Wednesday while travelling from Somalia to Sharjah in the UAE. The attack reportedly caused a fire onboard before the ship later sank off the Oman coast.

The latest developments are likely to heighten concerns over maritime security in the Gulf region, particularly around the Strait of Hormuz, through which a major share of global oil and gas supplies passes.

Seizures and attacks in Hormuz ongoing

The situation in the Strait of Hormuz, a critical waterway through which a fifth of the world’s oil used to pass through on a typical day, continues to capture the world’s attention as Iran’s grip has jolted the world economy and caused a spike in fuel prices that has rippled through other sectors with effects far beyond the West Asia.

UKMTO did not name the ship seized Thursday and said it is investigating. There were no immediate claims of responsibility for the seizure.

Fujairah is an important oil export terminal and the UAE’s main port outside of the Persian Gulf. It has been repeatedly attacked during the war with Iran.

The attack on the Indian-flagged cargo ship Haji Ali occurred Wednesday, according to Mukesh Mangal, a senior official in India’s shipping ministry. He said all 14 Indian crew members were rescued by Oman’s coast guard and were safe.

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India’s foreign ministry called the incident “unacceptable” and condemned continued attacks on commercial shipping and civilian mariners. The ministry did not identify who carried out the attack.

Seizures come at tense diplomatic moment

The seizure comes as US President Donald Trump met with Chinese leader Xi Jinping on a much-anticipated visit to Beijing.

The White House said both sides had agreed that the Strait of Hormuz must remain open.

Iranian semiofficial news agencies reported that Chinese ships began passing through the strait Wednesday night under new Iranian protocols. According to the reports, Tehran agreed to facilitate the passage of several Chinese vessels after requests from China’s foreign minister and Beijing’s ambassador to Iran. The ships began their passage as Trump arrived in China.

The seizures also happened hours after Prime Minister Benjamin Netanyahu announced he had quietly visited the UAE during the Israeli-U.S. war with Iran, though the UAE swiftly denied that any secret visit had occurred.

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The Gulf nation normalized relations with Israel in 2020. Iran has criticized that agreement and has repeatedly suggested over the years that Israel maintained a military and intelligence presence in the UAE.

Israeli leaders have made occasional visits to the UAE in recent years after normalising relations.

Netanyahu’s decision to go public with the sensitive meeting was likely an effort to drum up local support for his flagging party ahead of Israeli elections, said Yoel Guzansky, a senior researcher at the Institute of National Security Studies, a defence think tank in Tel Aviv.

“It’s amazing, it’s the deepest cooperation we’ve ever had … that during a war, Israel is defending an Arab state against Iran. It shows how complicated the West Asia is,” he said.

The UAE is trying to highlight its cooperation with Israel but not with Netanyahu and his government, Guzansky said, because many in the UAE are against Israel’s policies in Gaza.

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“They’re trying to differentiate between security cooperation and cooperating with this government,” said Guzansky, who previously worked for the national security council within the Israeli prime minister’s office.

Iran sets demands for new talks

Iran said it will not enter more talks with the United States unless Washington meets five conditions, including paying reparations for the war and accepting Iran’s sovereignty over the Strait of Hormuz, Iran’s semiofficial Fars news agency reported, citing an informed source.

The White House is again unlikely to accept those demands, especially formalizing Iran’s control over the waterway, which was open to international traffic before the war.

Iran’s senior vice president, Mohammadreza Aref, said Thursday that the strait belongs to Iran and that Tehran would not give it up “at any price,” state TV reported. “It has always been our property,” Aref said.

Iran defends right to seize ships

Iran’s judiciary spokesperson told the state-owned Iran Daily newspaper on Thursday Iran has the legal and judicial right to seize oil tankers connected to the U.S. in the strait because the U.S. has violated international maritime laws and committed piracy. The spokesperson, Asghar Jahangir, did not explicitly refer to the tanker seized on Thursday.

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Iran seized a number of ships, including a tanker identified as the Ocean Koi, last week, saying it was attempting to disrupt oil exports and Iranian interests, according to the official IRNA news agency. It said the tanker was seized in the Gulf of Oman and was carrying Iranian oil when it was boarded and taken to Iran’s southern coast.

The US sanctioned the Ocean Koi in February as part of a “shadow fleet” that has been transporting Iranian oil.

With inputs from agencies

First Published:
May 14, 2026, 18:53 IST

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