Rishi Sunak is holding an emergency cabinet meeting tonight with ministers plotting airstrikes against the Houthis in Yemen.
The Prime Minister was due to meet his top team at 7.45pm this evening to discuss a response to ships being targeted in the Red Sea.
Downing Street declined to comment ahead of what is expected to be a significant military operation led by the United States.
But Whitehall sources confirmed that Mr Sunak is ready to sign off military reprisals against the Houthis, who have launched a string of attacks on merchant shipping in the Red Sea in recent weeks.
The plans were finalised today following meetings of the Prime Minister’s National Security Council and the emergency committee Cobra.
Talk of a joint attack by the US and UK has heightened in recent days and Defence Secretary Grant Shapps warned further action would be taken if attacks persist, amid growing global concern about the disruption in the key global shipping route.
The Houthi military helicopter flies over the Galaxy Leader cargo ship in the Red Sea in November
A man rises a rifler as people gather to stage a protest against United Nations (UN) Security Council resolution demands that Houthis immediately cease all attacks on ships in Red Sea in Sanaa, Yemen
He also said he believed the Houthis, a Shiite group which has held Yemen’s capital since 2014, were acting with the support of Iran.
‘Be in no doubt at all, Iran is guiding what is happening there in the Red Sea, providing them not just with equipment to carry out those attacks but also often with the eyes and ears to allow those attacks to happen,’ he told Sky News.
‘We must be clear with the Houthis, that this has to stop and that is my simple message to them today, and watch this space.’
The Royal Navy air defence destroyer HMS Diamond was involved in the response to the latest in a series of attacks, which the Houthis have claimed are a response to the Israeli bombardment of Gaza.
Mr Shapps also posted on X, formerly Twitter: ‘Overnight, HMS Diamond, along with US warships, successfully repelled the largest attack from the Iranian-backed Houthis in the Red Sea to date.
‘Deploying Sea Viper missiles and guns, Diamond destroyed multiple attack drones heading for her and commercial shipping in the area, with no injuries or damage sustained to Diamond or her crew.
‘The UK alongside allies have previously made clear that these illegal attacks are completely unacceptable and if continued the Houthis will bear the consequences.
‘We will take the action needed to protect innocent lives and the global economy.’
It remains to be seen what form any further action might take from the US, the UK and other allies. There has been speculation that a response could involve strikes on the Houthi command centres.
The Prime Minister’s official spokesman told reporters on Wednesday: ‘I am not going to speculate about how we will or will not respond to continued attacks.
‘We do reserve the right to take further steps to protect commercial shipping and avoid the risk of further destabilising the region. That is something we will keep under review.’
US Secretary of State Antony Blinken, speaking in Bahrain, renewed warnings of a response.
He said: ‘I’m not going to telegraph or preview anything that might happen.
‘All I can tell you again, we’ve made clear – we’ve been clear with more than 20 other countries – that if this continues, as it did yesterday, there will be consequences. And I’m going to leave it at that.’
(Pictured: A F35 jet has maintenance carried out on deck) Rishi Sunak will brief his cabinet team about the planned strikes during this evening’s meeting
(Pictured: An F-35B Lightning jet on the HMS Queen Elizabeth) UK aircraft and Navy ships could take part in the strikes alongside the US, it is being reported
A Houthi trooper stands guard in front of a banner reading in Arabic ‘Allah is the greatest of all, death to America, death to Israel, a curse on the Jews, victory to Islam’
Royal Navy warship HMS Richmond leaving Gibraltar yesterday en route to the Gulf to protect shipping from Houthi rebel attacks on shipping in the area.
The Type 23 Frigate will stand in for HMS Diamond and HMS Lancaster when either vessel needs to break off patrols for re-supply or maintenance.
Personnel onboard HMS Diamond shoot down drones fired by Iranian-backed Houthi rebels
Some major shipping lines and oil giant BP have already diverted vessels around southern Africa, adding time and costs to journeys, rather than risk the Red Sea.
If the crisis continues, the increased costs could be passed on to consumers, hampering efforts to curb inflation and reduce interest rates.
Bank of England Governor Andrew Bailey said he was monitoring the situation closely when he appeared before MPs.
He told the Commons Treasury Committee: ‘We’ve certainly seen, as best we can tell from the monitoring, shipping traffic is being affected and is being rerouted. That will increase shipping prices and shipping costs. I think initially that will be an issue in the monetary policy world.
‘I would say one of the things, fortunately, that hasn’t happened, is that we have not had a prolonged spike in oil prices.
‘We had a bit of an initial spike and at the moment we’re seeing that, if anything, the oil price is actually coming down a bit, and there seems to be some price management to keep it there.’
US Central Command said the Houthis had launched a ‘complex attack’ and a total of 18 attack drones, two anti-ship cruise missiles and an anti-ship ballistic missile were shot down in the operation which involved Diamond, US warships and F/A-18 fighter jets.
US Secretary of State Antony Blinken last night warned of ‘consequences’ if the Houthis continue and called on Iran to end their support for the rebels.
Meanwhile, Admiral Lord West, the former First Sea Lord, said that the UK and US has to show that ‘enough is enough’ after drones and missiles launched from the Arabian state were shot down by HMS Diamond and American warships.
Speaking to Talk TV, Lord West said: ‘I think we’re in a position now where we can’t just sit there shooting down missiles, ballistic missiles, cruise missiles, drones being fired at our warships but also at peaceful merchant ships, most of which have nothing to do with Israel at all and we can’t just sit there letting them take pot shots, shooting them down at immense cost… we’ve got to make it clear to them that this is not allowed.
‘They can’t disrupt world trade in this way and I think the answer is, in self defence terms, if someone fires missiles at you from a site, that site is perfectly valid as a target for you and I think probably using the USS Eisenhower… we can carry out attacks on the sites within Yemen.’
Foreign Secretary Lord Cameron told MPs on the Foreign Affairs Committee on Tuesday that Houthi attacks in the Red Sea which had come in the wake of the Gaza conflict were ‘unacceptable’ in one of the ‘most important sea lanes’.
All eyes were on 10 Downing Street tonight amid an emergency cabinet meeting
It comes as the leader of the Huthi rebels threatened the US and Britain with even larger attacks in the Red Sea after their navies intercepted a major one.
US and British forces shot down 18 drones and three missiles launched by the Huthis late Tuesday in what London described as their biggest attack so far in solidarity with Palestinians in Hamas-ruled Gaza.
‘Any American aggression will never go without a response,’ rebel leader Abdulmalik al-Huthi said in speech broadcast live by the Huthis’ Al-Masirah television.
‘The response to any American attack will not only be at the level of the operation that was recently carried out… but it will be greater than that.’
The rebels said Tuesday’s attack was in retaliation for the US Navy’s killing of 10 Huthi fighters on December 31 as they attempted to board a merchant vessel passing through the Red Sea off the coast of Yemen.
The Huthis have carried out a growing number of attacks on Red Sea shipping since the Gaza war erupted with Hamas’s unprecedented attack on Israel on October 7.
The UN Security Council on Wednesday adopted a resolution that demanded the Huthis ‘immediately cease’ their attacks.
The Huthi campaign, which the rebels say only targets vessels linked to Israel or its allies, has caused major disruption with many shipping firms opting for a much longer route around the tip of Africa for security concerns.
Washington says more than 20 nations have joined the US-led Operation Prosperity Guardian to protect the vital sea lane which usually carries about 12 percent of maritime trade.
The Huthi leader said that ‘there is no problem for the Europeans, China and the whole world to pass through the Red Sea.’
‘The only and exclusive target are ships linked to Israel.’
But he added that any government that joins the military action against the rebels’ naval forces would face reprisals.
‘Whoever wants to get involved, attack our dear people and target the naval forces is actually risking their fleet and commercial ships,’ Huthi warned.
‘We hope that the rest of the Arab and Islamic countries will never get involved with the Americans, the Israelis and the British.’