Iran has hit a tanker off the coast of Qatar and Kuwait International Airport as Tehran remained unrelenting in its attacks on its Gulf Arab neighbours.
It also acknowledged for the first time that Washington had been in direct contact about a possible ceasefire.
Israel sounded warnings of incoming fire from both Yemen and Iran, while launching its own attacks in Lebanon that killed at least five people.
With no sign of the war abating and more than 3,000 lives already lost, US President Donald Trump suggested it could be over within two weeks even as he moved to bring thousands more troops to the region.
Mr Trump has been under growing pressure to end the war as Iran’s grip on shipping through the Strait of Hormuz and its attacks on regional energy infrastructure have sent gas prices skyrocketing to their highest level since 2022 and caused broad stock market fluctuations.
Iran throttled ship traffic through the strait, which leads from the Persian Gulf to the open ocean, after it was attacked by the US and Israel on February 28.
In peacetime, a fifth of the world’s oil transits the strait and the spot price of Brent crude, the international standard, is up more than 40% since the start of the war, trading at more than 104 dollars a barrel.
The US has presented Iran with a 15-point plan aimed at bringing about a ceasefire, which includes a demand for the strait to be reopened.
Iran’s own five-point response includes it retaining sovereignty over the waterway, and Mr Trump on Tuesday suggested that the war could be brought to an end even with Iran still controlling the strait.
He said the US “will not have anything to do with” what happens in the Strait of Hormuz, instead telling reporters that the responsibility for keeping the vital waterway open would belong with countries that rely on it.
“That’s not for us. That’ll be for France. That’ll be for whoever’s using the strait,” Mr Trump said.
It was not clear why Mr Trump brought up France, since Europe receives very little oil shipped through the strait, with most going to Asian countries. The president plans a prime-time address on Wednesday.
Mr Trump, who has vacillated between insisting there is progress in diplomatic talks with Iran and threatening to widen the war, added that the US is “finishing the job” in Iran and predicted it will be “maybe two weeks, maybe a couple of days longer to do the job”.
Mr Trump has warned that if a ceasefire is not reached “shortly”, and if the strait is not reopened, the US would broaden its offensive, including by attacking the Kharg Island oil export hub and possibly desalination plants.
Thousands of marines and paratroopers have been ordered to the region in possible preparation for an assault in Kharg, though to reach the island by ship would mean transiting the Strait of Hormuz and the Persian Gulf, which Iran has threatened to mine.
In an interview with broadcaster Al Jazeera, Iranian foreign minister Abbas Araghchi acknowledged receiving direct messages from US Middle East envoy Steve Witkoff.
He insisted, however, that there were no direct negotiations and said Iran has no faith that talks with the US could yield any results, saying “the trust level is at zero”.
He warned against any attempt to launch a ground offensive, saying “we are waiting for them”.
“We know very well how to defend ourselves,” Mr Araghchi said.
The war criminals in Israel are now openly and unashamedly bombing pharmaceutical companies.
Their intentions are clear.
What they’ve gotten wrong is that they’re not dealing with defenseless Palestinian civilians. Our Powerful Armed Forces will severely punish aggressors. pic.twitter.com/wh2FZUldR7
— Seyed Abbas Araghchi (@araghchi) March 31, 2026
Early on Wednesday a tanker off the coast of Qatar was hit with a projectile, the British military’s United Kingdom Maritime Trade Operations centre said. The crew was reportedly unharmed.
A fully-loaded Kuwaiti oil tanker came under attack off Dubai the day before, one of more than 20 ships attacked by Iran during the war.
Bahrain sounded two alerts for incoming missiles, and said an Iranian attack had caused a fire at a business facility.
In Kuwait, the state-run KUNA news agency said a drone had hit a fuel tank at Kuwait International Airport, sparking a “large fire” that crews were working to control.
Two drones were also intercepted in Saudi Arabia, which has come under repeated Iranian attack, and air raid sirens sounded in Israel though there were no immediate reports of damage or casualties.
In Iran, Israel said it had hit a plant producing fentanyl, a powerful synthetic opioid, to allegedly be used in a chemical weapons programme. Iran acknowledged the strike on Tofigh Daru factory, but insisted it only supplied “hospital drugs” used for medical purposes.
The strike happened on Tuesday, both the Israelis and the Iranians said.
Hospitals extensively use fentanyl to treat severe pain. But a small amount of the drug can be fatal.
Both Israel and the United States have alleged in recent years that Iran was experimenting with fentanyl in munitions.
In Beirut, at least five people were killed in an Israeli strike on a Beirut neighbourhood. Lebanon’s Health Ministry said another 21 people were wounded.
Israel invaded southern Lebanon after the Iran-linked Hezbollah militant group began launching missiles into northern Israel days after the outbreak of the wider war. Many Lebanese fear another prolonged military occupation.
More than 1,200 people have been killed in Lebanon and more than one million displaced, according to authorities. Ten Israeli soldiers have also died there.
In Iran, authorities say more than 1,900 people have been killed, while 19 have been reported dead in Israel.
Since the Iran war began, 13 US service members have been killed and 348 wounded, six seriously, according to US Central Command.
More than two dozen people have died in Gulf states and the occupied West Bank.
