The UK has raised the risk to British transport in Iranian waters within the Gulf to the best degree.
The step was taken on Tuesday, amid rising tensions within the area.
On Wednesday, Iranian boats tried to impede a British oil tanker within the area – earlier than being pushed off by a Royal Navy ship, the Ministry of Defence mentioned.
Iran had threatened to retaliate for the seizure of one of its own tankers, however denied any tried seizure.
The Division for Transport mentioned it recurrently supplied safety recommendation to UK ships in high-risk areas.
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Boats believed to belong to Iran’s Islamic Revolution Guard Corps (IRGC) approached the British Heritage tanker and tried to deliver it to a halt because it was shifting out of the Gulf into the Strait of Hormuz.
HMS Montrose, a British frigate shadowing the BP-owned tanker, was pressured to maneuver between the three boats and the ship, a Ministry of Defence spokesman mentioned.
He described the Iranians’ actions as “opposite to worldwide legislation”.
Weapons on HMS Montrose had been educated on the Iranian boats as they had been ordered to again off, US media reported. The boats heeded the warning and no pictures had been fired.
Final week, British Royal Marines helped the authorities in Gibraltar seize an Iranian tanker due to proof it was carrying oil to Syria in breach of EU sanctions.
A spokesman for the Royal Gibraltar Police mentioned they’d arrested the captain and chief officer of the Iranian tanker on Thursday, on suspicion of breaching EU sanctions, however neither had been charged.
The BBC has been informed British Heritage was close to the island of Abu Musa when it was approached by the Iranian boats.
Though Abu Musa is in disputed territorial waters, HMS Montrose remained in worldwide waters all through.
Defence Secretary Penny Mordaunt mentioned the federal government was involved by the incident and urged the Iranian authorities to “de-escalate the state of affairs”.
International Secretary Jeremy Hunt added the UK would monitor the state of affairs “very rigorously”.
Prime Minister Theresa Could’s official spokesman mentioned the federal government was “dedicated to sustaining freedom of navigation in accordance with worldwide legislation”.
What does Iran say?
The navy of Iran’s Islamic Revolution Guard Corps has denied claims it tried to grab the tanker, Iranian information businesses reported. IRGC’s navy mentioned there had been no confrontation with any overseas vessels up to now 24 hours.
Iranian overseas minister Mohammad Javad Zarif mentioned the UK made the claims “for creating rigidity”.
“These claims don’t have any worth,” Mr Zarif added, in keeping with the Fars information company.
Why are UK-Iran tensions escalating?
The connection between the UK and Iran has turn out to be more and more strained, after Britain mentioned the Iranian regime was “almost certainly” responsible for the attacks on two oil tankers in June.
Tensions grew after the seizure of an Iranian oil tanker by authorities in Gibraltar, assisted by British Royal Marines.
On Thursday an Iranian official informed the BBC the seizure was “pointless and non-constructive escalation by the UK”.
The official claimed the oil was not certain for Syria and known as for the tanker to be launched.
The Royal Gibraltar Police mentioned an investigation was ongoing and the tanker, Grace 1, continued to be detained.
Iran has known as the incident “a type of piracy” and an official beforehand mentioned a British oil tanker should be seized if Grace 1 was not launched.
On Wednesday, Iranian President Hassan Rouhani mocked the UK, calling it “scared” and “hopeless” for utilizing Royal Navy warships to shadow one other British tanker within the Gulf.
“You, Britain, are the initiator of insecurity and you’ll realise the results later,” Mr Rouhani mentioned.
The UK has additionally been urgent Iran to launch British-Iranian mom Nazanin Zaghari-Ratcliffe who was jailed for 5 years in 2016 after being convicted for spying, which she denies.