Iran's President Masoud Pezeshkian has claimed a US naval blockade on Iranian ports is 'doomed to fail' as Trump signals American military action could last months.

Pezeshkian says targeting Iran's ports will deepen disruptions in the Gulf and fail to achieve its targets.

'Any attempt to impose a maritime blockade or restrictions is contrary to international law… and is doomed to fail,' he said in a statement.

He also blamed the US and Israel for the ongoing blockade in the Strait of Hormuz, again defending the decision to keep out 'hostile countries'.

In a message commemorating National Persian Gulf Day on state media, Pezeskhian said the waterway was 'a symbol of the great Iranian nation’s resistance'.

Donald Trump has threatened to pull US troops from Germany over Berlin's refusal to back the war in Iran or join a peacekeeping force in the Strait of Hormuz.

The President has lashed out at German Chancellor Friedrich Merz who earlier this week said Iran was 'humiliating' Washington at the negotiating table.

'The United ​States is ⁠studying and reviewing the possible reduction of Troops ⁠in Germany, with a ​determination ⁠to be made over ‌the next short period of time,' Mr Trump said on ‌Truth Social.

Speaking to students in Marsberg, Merz suggested it was Trump’s team that was being outplayed, despite confident statements from the White House.

'The Iranians are obviously very skilled at negotiating, or rather, very skilful at not negotiating, letting the Americans travel to Islamabad and then leave again without any result,' he said.

US officials including Vice President JD Vance twice turned back last week from trips to Pakistan to negotiate with Iran, which has voiced doubts about Trump's sincerity for diplomacy.

Donald Trump said a US naval blockade against Iran could last months leading oil prices to spike to their highest level in more than four years.

Trump is expected to receive a briefing later today on new plans for potential military action in Iran from Admiral Brad Cooper, the head of US Central Command, two sources with knowledge told Axios.

Meeting oil executives, Trump contended that the blockade of Iranian ports - which Tehran has demanded must end before any deal - was more effective than bombing.

The President has told national security officials to prepare for a long blockade of Iran's ports in order to compel Tehran to give up its nuclear programme, according to the Wall Street Journal.

Trump, according to the report, does not believe that Iran is negotiating in good faith and hopes it can be forced to suspend uranium enrichment for 20 years and accept tight restrictions thereafter.

Speaking after his day with King Charles and Queen Camilla, Trump appeared to take a jab at Sir Keir Starmer.

He described Charles as 'fantastic' and a 'great friend.'

Trump added: 'I think if he were doing that, if that were up to him, he would have probably helped us with Iran.'

The UK government today said it would introduce new legislation to tackle state-sponsored threats carried out by proxies, after two Jewish men were stabbed in north London in an apparent antisemitic attack on Wednesday.

Security minister Dan Jarvis told Times Radio the government would fast track legislation which would allow the prosecution of people acting as a proxy of a state-sponsored group under Britain's National Security Act.

The government said the new powers would mean proxies could be dealt with in the same way as foreign intelligence services.

The plans were announced after Wednesday's stabbings, which follow a spate of recent attacks, many involving arson, on Jewish targets in London. Last October, two people and an attacker were killed after a man drove at a synagogue in the northern English city of Manchester.

Britain's independent reviewer of terrorism legislation, Jonathan Hall, told the BBC the attacks had become 'the biggest national security emergency' since 2017, when there were a string of high profile attacks.

The attacks have occurred amid warnings from security officials that Iran has sought to use criminal proxies to carry out hostile activity.

Police said after an arson attack at a synagogue this month that they were investigating possible Iranian links to the incidents. A pro-Iranian government group has said it was responsible.

Jarvis also said on Thursday that there would be an additional £25million to protect the Jewish community, which the government said brings the total funding this year to £58million.

Iran's consumer prices rose more than 70% between this March and April, compared to last year, Tehran's government has admitted.

The Statistical Center of Iran reported today that average inflation in the 12 months ending in April rose 53.7% from the same period a year earlier.

Overnight, CENTCOM chief Admiral Brad Cooper said US forces redirected the 42 commercial ship that tried to get though the US blockade of Iranian ships.

He said: 'Right now there are 41 tankers with 69million barrels of oil that the Iranian regime can't sell. That's an estimated $6billion-plus from which Iran's leadership cannot financially benefit.

'The blockade is highly effective and US forces remain fully committed to total enforcement.'

Trump has claimed that Iran is greatly suffering as a result of the US' naval action against Tehran.

Speaking to Axios, he said of Iran: 'They are choking like a stuffed pig. And it is going to be worse for them.'