The UAE's defence ministry says it is defending itself against "missile and drone attacks originating from Iran" - Tehran has yet to comment
Officials say a drone attack has sparked a large fire at a UAE oil port in Fujairah
Meanwhile, the US says navy destroyers and US-flagged merchant ships have sailed through the Strait of Hormuz, with Iran claiming this is "entirely false"
On Sunday, Trump said the US would start helping stranded vessels out of the shipping lane - an estimated 20,000 seafarers on 2,000 ships have been stuck since the US-Iran war began in February. Here's what we know - and don't - about the US's plan
Iran's military says it fired warning shots at a US warship - earlier, the US denied a claim in Iranian state media that Iranian missiles had hit a US ship
Cargo ships from South Korea and the UAE report being hit in the strait on Monday - no injuries were reported
In an update just now, the Israel Defense Forces (IDF) says it is closely monitoring the situation in the Gulf.
"Our air defence systems and offensive capabilities remain at a high state of readiness, which has not changed since the ceasefire came into effect," it says.
Hugo Bachega
Middle East correspondent in Lebanon
Image source, EPASmoke rises after a strike in southern Lebanon, 4 May 2026
Meanwhile, in southern Lebanon, this is a ceasefire in name only. Israeli air strikes have continued, every day.
According to the health ministry here, the attacks have killed at least a hundred people in the last four days alone, including civilians. And there have been new evacuation warnings for several villages outside the region currently occupied by the Israeli military - the self-declared security zone. Israel accuses Hezbollah of breaching the ceasefire deal that was struck with the Lebanese government.
And Hezbollah is attacking Israeli troops in Lebanon and northern Israel with rockets and drones, saying it is responding to Israel’s violations.
Diplomacy has so far failed to stop the war. Lebanese authorities hope direct talks with Israel will pave the way for a negotiated solution.
But Hezbollah has rejected those efforts. And without the group’s consent, any initiative to bring lasting peace is unlikely to succeed.
Sebastian Usher
Global affairs correspondent
The prospect of a renewed military confrontation between Iran and the US seems to be rising, as the UAE has faced several missile strikes.
As reported earlier, the emirate of Fujairah in the UAE says that a fire has broken out in a major petroleum complex after an Iranian drone attack, with three people injured.
The UAE has described the Iranian attacks as a dangerous escalation. It has certainly broken the lull in attacks since the ceasefire between the US and Iran began.
That truce now seems increasingly at risk, as Tehran has shown its readiness to respond to US efforts to break its blockade of the Strait of Hormuz.
Bernd Debusmann Jr
White House reporter
Donald Trump says the US has struck seven Iranian "small boats" as it works to open the Strait of Hormuz.
For Trump, these limited operations are something he has previously signalled a willingness to do - but they fall well short of resuming the kind of large-scale, country-wide strikes seen earlier in the war.
In mid-April, Trump suggested strikes against Iranian boats were possible, warning they would be "immediately eliminated" using the "same system" being used against alleged drug boats in the Caribbean and Eastern Pacific.
"It is quick and brutal," he added.
While more "kinetic" than the blockade, these small-scale strikes also allow the Trump administration to avoid returning to a war that was already unpopular among many Americans, instead adopting a "slow burn" approach.
That isn't to say wider strikes are off the table if Trump believes he has run out of alternatives to secure the strait or pressure the Iranians.
Just this weekend, he said further strikes are a "possibility" if Iran "misbehaves" or "does something bad".
He did not, however, provide any details on what that could be.
Bernd Debusmann Jr
White House reporter
Image source, EPAWe've just heard from US President Donald Trump, who says US forces struck seven Iranian "small boats" as they work to open the Strait of Hormuz.
In a brief post, Trump also says Iran has "taken some shots at unrelated nations", including a South Korean vessel.
He again encourages other nations to step up and do more to support US efforts to secure commerce in the region.
"Perhaps it's time for South Korea to come and join the mission," he says.
Trump adds that Defence Secretary Pete Hegseth and Joint Chiefs Chairman Gen Dan Caine will hold a news conference tomorrow morning to provide further updates.
We're expecting to see Trump at an unrelated event at the White House in about 1 hour 30 minutes.
We've just seen a new statement from the United Arab Emirates, saying it holds Iran "fully responsible" for new strikes today.
"These attacks constitute a dangerous escalation and an unacceptable transgression," the statement says, adding that it violates the principles of international law and the Charter of the United Nations.
The UAE also says it "reserves its full and legitimate right to respond to these attacks" in line with international law.
Iranian state TV has quoted an unnamed "senior military official" saying that "Iran has had no plans to target the UAE". No officials have responded further.
Ben King
Business reporter
It has been another day of wild swings on the oil market, and the benchmark Brent crude oil price hit its highest levels of the day following reports of drone strikes in the UAE.
Brent passed $115 a barrel shortly after 17:00 BST after reports that the key oil port of Fujairah had come under attack, up more than 5% on the day.
Fujairah lies on the east coast of the UAE, beyond the Strait of Hormuz.
A pipeline from the oilfields of Abu Dhabi runs to Fujairah, allowing limited amounts of crude to be loaded on to tankers and shipped to world markets despite the strait being effectively blockaded.
Brent crude hit $114 earlier in the day after reports that Iran's military had hit a US destroyer. Prices fell back again when the US said its ships had not been hit.
Now an update from Fujairah, which reported a large fire after a drone attack from Iran earlier.
Three Indian nationals have been taken to hospital for treatment after the strike on the Fujairah Oil Industry Zone (Foiz), according to the city's media office.
In a statement, the media office says the three nationals sustained "moderate injuries".
The Foiz is an energy hub hosting one of the largest oil storage facilities in the Middle East.
The latest reports from Fujairah in the UAE come after a tanker linked to Adnoc, the state-owned oil company, was reportedly hit in the Strait of Hormuz.
Neighbouring Qatar has condemned the tanker attack. In a statement, its foreign ministry called the attack "a blatant violation of international law and the principle of freedom of maritime navigation".
It has again called for the strait's "unconditional reopening".
Meanwhile, the UAE continues to report missile attacks, with its latest warning issued at 19:49 local time (16:49 BST).
We're yet to hear from any Iranian officials confirming the attacks.
We're also hearing from local officials in Fujairah, who say a large fire has broken out at the key UAE oil port after it was hit by a drone attack from Iran.
Fujairah is the Emirates' biggest port and oil storage facility. Before the ceasefire, it was also targeted in drone attacks.
In a statement shared on social media, the Fujairah Government Media Office says civil defence teams are working to contain the fire.
The report of the strike came after the UAE defence ministry said it had intercepted three missiles launched from Iran.
The Iranian government has not commented on the attack.
The UAE's defence ministry says it has intercepted three missiles launched from Iran, while a fourth fell into the sea.
In a post on social media, it says explosions heard in parts of the country were due to the interceptions.
This comes shortly after the country's emergency management authority said it was responding to missile threats.
Iran has not commented on the attack.
The UAE says its air defences are responding to a missile threat.
The country's National Emergency Crisis and Disaster Management Authority is urging people to stay in a safe place.
This comes after an earlier missile alert was sent to UAE residents. South Korean officials have also said a cargo vessel anchored in waters near the UAE may have been struck, causing an explosion.
Image source, ISNA/WANA/ReutersIran’s Islamic Revolutionary Guard Corps (IRGC) has called the US claim about ships passing through the Strait of Hormuz “outright lies”.
Earlier, US Central Command said two US-flagged merchant vessels had “successfully transited through the Strait of Hormuz”.
Now, Iranian state media have shared a statement from the IRGC saying “no commercial vessels or oil tankers” have passed through the Strait of Hormuz in “recent hours”.
The IRGC says the US statements are “baseless and entirely false”, and warns that any other movements against the instructions of the IRGC Navy “face serious risks”.
There’s been a suspected strike on a South Korean cargo vessel anchored in the Strait of Hormuz, according to the country’s Ministry of Oceans and Fisheries.
At about 12:40 BST (11:40 GMT), a "suspected strike" was reported on a cargo vessel named HMM Namu in the Strait of Hormuz, the ministry says.
The vessel was reportedly anchored in waters near the UAE. There are 24 crew members on board, including six South Koreans and 18 foreign nationals, according to the ministry. No casualties have been reported.
The ministry says an explosion is believed to have occurred on the port side of the engine room during the suspected strike.
This comes after reports from the UAE that a tanker linked to Adnoc, its state-owned oil company, was hit in the Strait of Hormuz earlier today.
Earlier, Iranian state media reported that the military had hit a US destroyer trying to enter the Strait of Hormuz - something the US has denied.
We've now had further comment from the Iranian military.
It says the Iranian Army Navy "issued a warning and fired warning shots along the route of the hostile enemy destroyers".
The Iranian military says US destroyers turned off their radars before approaching the strait, and were "detected immediately" after reactivating them.
The destroyers then received a radio warning from the Navy "regarding the dangers of violating the ceasefire", the Iranian military adds.
Another "explicit warning" was sent to the destroyer, according to the Iranian military, saying that "any attempt to enter the Strait of Hormuz would be considered a violation of the ceasefire and would be met with a response from naval forces".
It says warning shots were fired after the Americans "disregarded" the warning.
By Emma Pengelly
We've been checking the ship tracking tool MarineTraffic after US Central Command (Centcom) said two US-flagged merchant vessels "successfully transited through the Strait of Hormuz".
We haven't seen vessels matching this description on MarineTraffic but are continuing to monitor the site.
As we mentioned earlier, MarineTraffic publishes details about vessels including their locations using information broadcast by an onboard tracker called Automatic Identification System (AIS).
But vessels can also turn off their location transmissions, meaning they wouldn't be visible on tracking platforms like MarineTraffic. It's also possible for vessels to falsify their positions, a process known as spoofing.
Image source, ReutersDonald Trump says the US military will guide ships through the Strait of Hormuz - but Iran insists any ships wanting to cross the crucial shipping passage will need its permission.
Here’s what else to know:
Centcom says plan is working: In an update, it says two US-flagged merchant ships have crossed the strait - Iran has yet to comment.
Conflicting messages: Iran says it stopped a US destroyer from entering the strait. US Central Command (Centcom) denies this, saying none of its ships have been struck.
Thousands still trapped: Sailors have been trapped in the waterway since the start of the war - with supplies said to be dwindling, our international correspondent reports.
Oil prices rise again: Oil prices have jumped after Iran said it hit a US destroyer, soaring to $114 per barrel - a 5% rise from the market opening.
Frank Gardner
Security correspondent
United Arab Emirates residents have just received a missile alert from the Ministry of Interior.
Shortly afterwards, an all clear message was sent, telling residents "the situation is currently safe" and that normal activities can resume.
It's not yet clear what triggered the warning.
Any plan to escort ships through the Strait of Hormuz comes with "significant risk", says a retired US navy captain.
Kevin Eyer, who previously commanded three warship cruisers, tells the BBC News channel that it's unclear whether the US intends to "guide and coordinate, or to actually go in and do a classic convoy situation".
"The difference between these two things is the difference between night and day. The active escort is the most dangerous and fraught solution," he says.
Eyer points out that Iran still has a number of anti-ship ballistic missiles, as many as 1,000 anti-ship drones, and "hundreds of fast patrol boats which can be armed with rockets".
The US says navy destroyers and US-flagged merchant ships have sailed through the Strait of Hormuz. Iran's military earlier said it would attack US forces if they entered the strait.
US Central Command (Centcom) has issued a short update.
It says two US-flagged merchant vessels have "successfully transited through the Strait of Hormuz".
Centcom adds that US Navy guided-missile destroyers are operating in the Gulf after transiting through the Strait.
"American forces are actively assisting efforts to restore transit for commercial shipping," the update says.
Centcom has not provided the names of the vessels which it says have successfully sailed through the strait.
