Barbara Plett Usher
Reporting from Jerusalem

The most significant thing that President Trump has said in the last 24 hours is that the US will reimpose its naval blockade on Iran.

At the core of their memorandum of understanding signed last month was agreement that the US would lift the blockade and Iran would open up the Strait of Hormuz.

But the Americans accuse Iran of preventing free navigation of the strait - by dictating what Tehran says is the authorised route near its coast and firing on ships that don’t take it - so the US blockade is going back into effect.

This almost gets us back to the status quo before the deal. Diplomatically it's a huge blow.

For the Iranians, it's a big economic blow because they need access to the strait to export their oil.

And the Americans say that they’ll take comprehensive action: they're going to stop all ports and oil terminals from getting traffic along the entire Iranian coastline.

That will almost certainly escalate the conflict in what is an already tense and volatile climate.

Neither side has said the memorandum of understanding is completely dead, but more and more, they are behaving as if it is.

The Strait of Hormuz is now Iran's main source of both leverage and deterrence in its conflict with the US after its proxy groups have been left in "disarray", according to Mehran Kamrava, professor of government at Qatar's Georgetown University.

He says Iran's so-called axis of resistance, which includes groups like Hamas in Gaza, Hezbollah in Lebanon and the Houthis in Yemen, are in "disarray, or at least militarily depleted" due to the war.

"For Iran the Strait of Hormuz is a main source of leverage... [its] main source of deterrence," Kamrava tells Radio 4's Today programme.

As a result, he says the US is "determined to wrest control of the strait from Iran", but adds that how the US can do this is something he does not believe that even "planners in the Pentagon" know the answer to.

"Related to this is the fact that Iran is keenly aware that it cannot go toe-to-toe militarily with the United States, and so it wants to turn the military conflict into an economic one," he adds.

Image source, Reuters

As the US and Iran's dispute over the Strait of Hormuz escalates, Donald Trump announced yesterday that the US would reinstate a naval blockade of Iranian ports. Here's what we know so far:

• The blockade will stop "Iran’s ships or customers from entering or leaving" the Strait of Hormuz, while all other countries "will have fair and open use" of the shipping route
• Trump said "as a matter of fairness" the US will also impose a 20% charge on all cargo shipped through the strait
• This will go towards covering any and all costs of "providing safety and security to this very volatile section of the World"
• It is unclear how the US will impose the toll and the International Maritime Organization said there is "no legal basis" for such a move
• The blockade will be enforced by US Central Command and will come into effect from 16:00 Eastern Time (20:00 GMT) on Tuesday

Peter Hoskins
Business reporter, Singapore

Oil prices have risen in Asian trade this morning, with Brent crude up by 1.9% at $84.87 (£63.48) a barrel, while US-traded oil rose by 2% at $79.75.

That followed a 9% jump in the price of Brent on Monday as the conflict escalated.

Energy prices on global wholesale markets have swung wildly in recent months as traders reacted to developments in the conflict.

Shortly after the US and Israel attacked Iran on 28 February, Tehran effectively closed the Strait of Hormuz, which around 20% of the world’s oil and liquefied natural gas (LNG) usually passes through.

Despite the latest increases, prices are well below the $120 a barrel mark Brent reached at the end of April.

Elsewhere in the Gulf overnight, both Jordan and Bahrain reported attacks in their territory.

Bahrain's Ministry of Interior sent three separate alerts overnight urging resident to seek the nearest shelter, while Iran's Islamic Revolutionary Guard Corps (IRGC) reported it struck several US targets in the country.

In a statement published by Iranian state news agency IRNA, the IRGC said it had destroyed several weapons depots, a satellite communications centre, a building that housed US forces and a US Navy air traffic control radar.

Jordan's state news agency reports that it intercepted four missiles over its territory early on Tuesday morning, resulting in no casualties or "material damage".

In a statement the IRGC said it had targeted US facilities within Jordan, adding that it bears "no enmity" towards the government or people of Jordan.

The US military says it carried out another wave of strikes on Iranian military targets overnight.

US Central Command (Centcom) says it launched attacks in Bushehr, Chah Bahar, Jask, Konarak, Abu Musa, and Bandar Abbas "to further degrade Iran's ability to attack commercial shipping".

Strikes were carried out using "precision munitions", targeting Iranian coastal defence systems, missile and drone sites, and maritime capabilities, it adds.

It is the third consecutive night of strikes carried out by the US against Iran.

Centcom says they will continue "imposing a heavy cost on Iranian forces and degrade their ability to attack innocent civilians and commercial shipping in the Strait of Hormuz".

Image source, Reuters

Overnight, the UAE Ministry of Defence said two tankers were targeted by Iranian cruise missiles while transiting the Strait of Hormuz in Omani waters.

This resulted in the death of an Indian crew member, with eight others injured - six of whom are Indian and two Ukrainians, it said.

It adds that both tankers, the Mombasa and Al Bahiyah, were damaged in the attacks, which caused fires to break out.

The UAE says it condemns the "brazen" attacks and calls them a “serious violation” and a “clear breach” of international law, adding that it reserves its “full right to respond” with “all necessary measures”.

Iran's Islamic Revolutionary Guard Corps (IRGC) later confirmed the strikes via a statement to Telegram, where it said two tankers had ignored warnings, turned off navigation systems and attempted to pass through a mined route.

It added that "co-operation with the aggressor enemy" would only lead to regret, damage and delays in opening the strait - as well as the "creation of an energy crisis in the world".

The US military has carried out a third consecutive night of strikes against Iran, as tankers in the Strait of Hormuz were hit by Iran's Islamic Revolutionary Guard Corps (IRGC).

President Donald Trump said the US was hitting Iran "very hard" amid escalating attacks between the two countries.

Iran was accused by the UAE of a "brazen" attack on two tankers in the strait, killing one and wounding eight others, four of which were serious.

The IRGC confirmed the strikes, saying two tankers had ignored warnings, turned off navigation systems and attempted to pass through a mined route.

The dispute over control of the Strait of Hormuz threatens to derail efforts to end the war.

On Monday the US reimposed its naval blockade of Iranian ports. President Trump said that the US would also impose a 20% charge as part of its operations to control the waterway.

We'll have the latest news lines from the region and analysis from our teams throughout the day, so stay with us.

Image source, NurPhoto via Getty Images

We're about to close this live page, but before we go here's a quick recap of some of today's key developments.

• President Donald Trump has said the US is reinstating a naval blockade of Iranian ports and will impose a 20% charge on all cargo shipped through the Strait of Hormuz
• He said this would stop "Iran's ships or customers" from entering or leaving the key oil shipping route, but "all other countries will have fair and open use of the Strait"
• The blockade will be in effect from 16:00 Eastern Time (20:00 GMT) on Tuesday
• Iran's foreign minister later said whoever provides safe passage "should be compensated for this service", but Iran would remain the strait's "GUARDIAN" - using Trump's word
• Tehran and Washington clashed over the strait's control after exchanging strikes in the region overnight
• The US said it carried out strikes against military targets in Iran, targeting air defence systems, coastal radars, and missile and drone sites
• Iran said it responded by striking US military bases in Kuwait, Jordan and Bahrain, and radars in Oman

You can continue reading with our latest story.

US President Donald Trump has announced that he will be “making a Speech to the Nation” on Thursday - although he hasn't indicated what the address will be about.

In a post on his social media platform Truth Social, he says he will speak at 21:00 EDT (02:00 BST).

He last addressed the nation regarding the war in April.

The Iran-backed Houthi group in Yemen says it has targeted Saudi Arabia's Abha International Airport with ballistic missiles and drones.

Houthi spokesperson Yahya Saree says the Houthis were responding to "Saudi aggression that targeted Sanaa International Airport".

Saudi Arabia has not yet commented.

Earlier, there were reports Yemen's army had targeted a runway at the Sanaa airport in Yemen to prevent an Iranian plane from landing. The Houthis blamed Saudi Arabia for the attacks.

Afterwards, the Saudi-led coalition in Yemen said its air defences had dealt with ballistic missiles launched by the Houthi rebels towards the southern region, without specifying if it meant in Saudi or Yemen.

Yemen's internationally-recognised government has the backing of Saudi Arabia, but the Houthis control parts of the country including the capital Sanaa.

Cai Pigliucci
Reporting from Washington DC

The BBC has confirmed that Donald Trump formally notified Congress that military activities against Iran resumed.

On July 10, the US president wrote a letter to Senator Chuck Grassley, president pro tempore of the United States Senate, to inform of military activities that resumed on 7 July.

In the letter, Trump says the strikes are defensive and designed to "protect Americans and United States' interests at home and abroad".

He also describes them as "limited, measured, planned, and executed in a manner designed to minimize civilian casualties".

"I am providing this report as part of my efforts to keep the Congress fully informed, consistent with the War Powers Resolution," Trump adds.

Under the resolution, it states that the president must inform lawmakers within 48 hours of launching a military attack.

The UN's International Maritime Organization (IMO) says it has "always been consistent" its in stance on fees, following President Trump's announcement that the US will impose a toll on ships passing through the Strait of Hormuz.

A spokesperson says: "IMO stands firmly against charging fees for passage through straits used for international navigation.

"There is no legal basis through which to introduce mandatory tolls simply to transit through a strait."

The agency says it is aware of Trump's social media post announcing his plans and is "awaiting more information".

An advisory note from the Joint Maritime Information Centre (JMIC) issues advice, ahead of the US naval blockade on Iranian ports beginning on Tuesday.

The UK's Maritime Trade Operations shared the notice on X, writing that the regional maritime security threat level remains severe.

"Further deliberate hostile activity" is likely under current condition, the notice adds.

Mariners should expect a "sustained naval presence, increased IRGC hailing and monitoring along transit routes," and enforced protection measures should be anticipated.

They are told to consider complying with the directions of blockading forces, demonstrating clear transit intentions and report unusual activity.

US Central Command (Centcom) says the Strait of Hormuz blockade will resume at 16:00 ET (21:00 BST) on 14 July.

Earlier, Donald Trump said the blockade would begin "immediately".

"Centcom forces will enforce the blockade against vessels transiting to or from Iranian ports and coastal areas," the US military says in a post on X.

"The US military continues to support traffic flow through regional waters for all vessels not violating the blockade."

It urges all mariners to monitor broadcasts and contact US naval forces when operating in the Gulf of Oman and Strait of Hormuz approaches.

Image source, EPA/Shutterstock

Iran's Foreign Minister Abbas Araghchi has posted a mocking reaction to Donald Trump's announcement that America will impose a charge on cargo passing through the Strait of Hormuz.

"POTUS is absolutely right," he says on X. "Whoever provides secure and safe passage of commercial vessels through the Strait of Hormuz should be compensated for this service."

"Iran has always been the GUARDIAN of the Strait and will remain so FOREVER," Araghchi says.

"20% is of course too much. We will be fair," he adds.

The US president is attending a Grand Prix showcase event with race car drivers at the White House.

We're listening across to Trump's remarks in Washington and will bring you any lines from him that are relevant to Iran.

You can also watch live at the top of the page.

Image source, Reuters

Iran's Foreign Ministry spokesperson Esmail Baghaei has condemned the reported attack on the airport in Yemen's capital, Sanaa, calling it a "blatant violation of international aviation law".

Yemen's armed forces reportedly targeted the runway earlier today to prevent an Iranian aircraft from landing.

Yemen's capital Sanaa is under the control of the Iran-aligned Houthi group, while the internationally-recognised government, which has the backing of Saudi Arabia, operates out of Aden in southern Yemen.

Houthi media subsequently said the Iranian plane had landed anyway.

The details of the incident remain unclear, but it already appears to be the most significant escalation in the largely dormant conflict between the Yemeni government and the Houthis for several years, our correspondent wrote earlier.

Where is Iran’s Supreme Leader?published at 18:44 BST 13 July

18:44 BST 13 July

Ghoncheh Habibiazad
BBC Persian

Image source, Reuters

Iran’s Supreme Leader Mojtaba Khamenei has not been seen in any verified videos or photos since his succession to the position of his father in early March.

He was reportedly injured in the same strike that killed his father Ali Khamenei on 28 February in Tehran, when US and Israel attacked Iran in the first day of the war. But Iran’s health ministry has rejected claims that his injuries were severe.

US President Donald Trump said about Mojtaba Khamenei today that he’s “90 per cent gone”.

So far, since 8 March, we have seen several written messages attributed to Mojtaba Khamenei. In the latest one two days ago, Khamenei vowed to avenge his father’s killing. Iranian officials have followed suit recently.

Mojtaba Khamenei did not appear publicly during the week-long commemoration ceremonies held in early July for his father, although brothers of Mojtaba Khamenei did.

The question still remains about his whereabouts.

But Israel had vowed before and after Mojtaba Khamenei became Iran’s supreme leader that it would target him, although we are yet to see when, or if, he will appear if public.

If you're just joining us, here's a quick rundown of events this afternoon:

• Donald Trump announced a new blockade on Iranian ports, which will prevent "Iran’s ships or customers" from entering or leaving the Strait of Hormuz

• He added that for doing so, the US will impose a 20 per cent charge "on all cargo shipped" to cover any and all costs of providing "safety and security" in the "volatile" region
• It is not the first time Trump has imposed a blockade on the vital shipping route. The one in April lasted three months, during which the US military fired on at least nine vessels which it said refused to comply with directions
• Trump's announcement followed a fresh round of strikes between the US and Iran overnight. US Central Command (Centcom) said it struck several targets, including a submarine and ship maintenance facility in response to Iranian attacks in the strait
• Responding to the introduction of a new blockade, Iranian parliamentarian Ebrahim Rezaei said: "We don’t need foreign workers to protect the strait!"
• This latest escalation has once again halted traffic through the strait, with two vessels appearing to have sailed east into the Gulf of Oman earlier today. Two other ships stopped transmitting their locations after previously appearing to head out of the strait