Strait of Hormuz tensions escalate as US rejects Iran ceasefire proposal

Tehran, Iran — Tensions in the Strait of Hormuz intensified on Sunday following US President Donald Trump’s rejection of a diplomatic initiative proposed by Iran aimed at reopening the critical shipping lane. The dismissal came just hours before explosions were reported in the waterway, according to Iranian media outlets.

Reports indicated that multiple anti-ship missiles and drones were launched near Qeshm Island in southern Iran, targeting vessels traversing the strait in defiance of Tehran’s directives. While Iranian authorities did not immediately confirm specific incidents for that day, maritime attacks persist, including a deadly strike last week on an Indian cargo ship off the coast of Oman that resulted in the death of a sailor.

The Islamic Revolutionary Guard Corps (IRGC) maintains that the strait remains closed to all ships not coordinating with Iranian authorities. On Sunday, the IRGC released footage it claimed showed the seizure of a second US underwater drone within the current month.

Tehran has instructed shipping companies to utilize a temporary route approved by Iranian officials and to pay associated fees. However, Iran has stated the waterway will not fully reopen until the US blockade on Iranian ports is lifted. The Persian Gulf Strait Authority announced on Saturday that it would blacklist any charterer directing vessels to use unauthorized routes. The authority also published what it described as an apology from an unnamed shipowner, who blamed commercial pressure from charterers for attempting to bypass the restrictions.

Washington continues to assert that its warships are successfully escorting oil tankers through an alternative route. US Energy Secretary Chris Wright told Fox News on Sunday that the average daily crude oil throughput was nearly 13 million barrels. A September 19 operational update from US Central Command stated that forces had facilitated the movement of over one billion barrels of crude from the Gulf in approximately two months.

Additionally, the US military reported redirecting 122 commercial vessels to enforce a naval blockade of Iranian ports, effectively halting all Iranian crude exports. Tehran accuses the US of disseminating false data regarding traffic in the strait to project an image of control over the key waterway. Commercial shipping has been severely disrupted since the US and Israel launched their war on Iran on February 28.

Andreas Krieg, an associate professor at King’s College London, noted that Iran’s strategy of conducting maritime attacks has expanded the conflict’s economic repercussions beyond its borders. While Iran has suffered significant economic losses due to wartime damages and US sanctions, Krieg argued it would be erroneous to assume these pressures would force compliance.

“The next Iranian move is therefore likely to be an attempt to increase the pain experienced by the Gulf rather than simply absorb further American pressure,” Krieg said, suggesting potential escalation through vessel interdictions, strikes on energy infrastructure, and increased pressure via Houthi forces around the Bab al-Mandeb strait.

At the United Nations General Assembly in New York, Iran reaffirmed its stance, proposing to reopen the Strait of Hormuz within a week if seven conditions were met. These demands include lifting the naval blockade, releasing frozen Iranian assets, and ending attacks across all fronts, including Israel’s operations in Lebanon. Tehran emphasized that any reopening must be managed through a bilateral agreement finalized with Oman, the sole other nation with territorial waters in the strait.

President Trump rejected the proposal, but Iranian Foreign Minister Abbas Araghchi stated on Sunday that Tehran remains firm on its conditions and awaits an official response through mediators such as Pakistan, Qatar, and Oman. Abolfazl Shekarchi, chief spokesman for the Iranian armed forces, warned that further US intervention in the strait would result in severe consequences, adding that the Americans should withdraw from West Asia to ensure regional safety.

Iranian army spokesman Mohammad Akraminia suggested that deteriorating conditions for the US could provoke another military aggression against Iran. Krieg observed that as sanctions isolate Iran, Tehran is likely to rely on continued coercion in the Strait of Hormuz. He predicted a cycle of controlled attrition involving further attacks on tankers and US-enabled shipping, followed by limited US strikes against IRGC maritime assets.