Iran and US Drift Further Apart as Hormuz Tensions Threaten Renewed Conflict

Hopes for a diplomatic breakthrough over the Strait of Hormuz have faded sharply after US President Donald Trump turned down an Iranian proposal aimed at reopening the strategic waterway, raising fears that fighting between Washington and Tehran could soon resume.

The rejection came just hours before explosions were reported in the strait itself. Iranian media said blasts were heard near Qeshm Island off southern Iran, suggesting that multiple antiship missiles and drones had been launched at vessels transiting the waterway without Tehran's permission. Iranian authorities did not confirm that any attacks had taken place that day, leaving the incident clouded in uncertainty.

Even so, the reported strikes fit a broader pattern of escalating maritime violence. Shipping in the region continues to come under attack, including an Indian cargo ship that was hit last week, killing a sailor. The steady stream of incidents has made the strait one of the most dangerous passages in the world for commercial crews.

At the centre of the standoff is the Islamic Revolutionary Guard Corps, which insists the strait remains closed to any vessel that fails to coordinate with Iranian authorities. In a further sign of mounting friction, the IRGC released video on Sunday that it said showed a second US underwater drone seized this month, following an earlier capture.

Iran has sought to impose its own rules on traffic through the chokepoint. Shipping companies have been instructed to use a temporary route approved by Iranian officials and to pay the relevant fees for passage. Tehran has also made clear that the strait will not fully reopen until the US blockade on Iranian ports is lifted, tying the waterway's status directly to the wider confrontation.

The pressure on shippers intensified at the weekend when Iran's Persian Gulf Strait Authority announced it would blacklist any charterer that ordered crews to use routes it deems unauthorised. The authority also published what it described as an apology from an unnamed shipowner, who blamed commercial pressure from a charterer for attempting to pass through the strait via a forbidden route.

Washington, for its part, maintains that its warships are successfully escorting oil tankers out of the strait along a different corridor. US Energy Secretary Chris Wright told Fox News on Sunday that the running average of crude oil in transit was close to 13 million barrels per day, presenting the figure as evidence that the flow of energy has not been halted.

The US military has also pointed to its own statistics to bolster that claim. A September 19 operational update from US Central Command said its forces had helped move more than one billion barrels of crude out of the Gulf over roughly two months. CENTCOM added that its personnel had redirected 122 commercial vessels as part of the naval blockade of Iran's ports, a measure it says has halted all Iranian crude exports.

Tehran has rejected those accounts, accusing Washington of spreading false information about traffic through the Strait of Hormuz in order to project an image of control over the key waterway. The competing narratives have left a muddled picture of how much shipping is actually moving and under whose authority.

What is not in dispute is the scale of the disruption. Shipping through the strait has been severely hampered since the US and Israel launched their war on Iran on February 28. The waterway, through which a substantial share of the world's oil normally passes, has become a focal point of the conflict rather than a neutral transit route.

Andreas Krieg, an associate professor at King's College London, said Iran's decision to launch maritime attacks has deliberately spread the economic costs of the war beyond its own borders. By targeting shipping, Tehran is able to inflict pain on Gulf states and global markets alike, even as its own economy suffers.

Krieg noted that Iran has already been hit hard by war damage, the US naval blockade and international sanctions. But he cautioned against assuming that economic pressure will eventually force Tehran to capitulate, arguing that it would be a mistake to believe "reaching that threshold produces submission."

Instead, Krieg expects Iran to try to widen the pain felt by its neighbours rather than simply absorb more American pressure. He suggested the next phase could involve more aggressive interdictions of vessels in Hormuz, strikes on energy infrastructure, increased Houthi pressure around the Bab al-Mandeb strait and action by Iranian-aligned groups against alternative Saudi export routes.

"We are already seeing how pressure on Hormuz, the Red Sea and Saudi infrastructure can interact," Krieg said, describing a web of interconnected flashpoints that could compound one another.

The diplomatic track has offered little cause for optimism. At the United Nations General Assembly in New York, Iran struck a defiant tone while also holding out the possibility of reopening the Strait of Hormuz within a week if seven conditions were met. Those demands included lifting the blockade on Iran, releasing frozen Iranian funds and ending attacks on all fronts, including Israel's assault on Lebanon.

Trump's rejection of the proposal, following his dismissal of an earlier seven-day ceasefire plan, has left the two sides further apart than at any point in recent weeks. With no agreement in sight and violence continuing at sea, the coming days are likely to test whether the conflict remains contained or escalates once more.