Britain is coordinating with airlines to increase flight capacity out of Muscat, Oman, to prioritise the evacuation of vulnerable British nationals, foreign minister Yvette Cooper told parliament on Tuesday.

She added that she was in close contact with her counterparts in the Gulf countries, noting that 130,000 British citizens have now registered their presence in the region.

Cooper said: “We are also working with airlines on increasing capacity out of Muscat for British nationals, with priority for vulnerable nationals.”

She confirmed that a government charter flight “will fly from Muscat in the coming days, prioritising vulnerable nationals, but British nationals in Oman must wait to be contacted by the foreign office regarding these options”.

The UK Foreign Office noted that the chartered flight is scheduled to depart from Muscat at 1900 GMT on Wednesday, but Britons should “not go to the airport unless they are contacted”.

In addition, IAG-owned British Airways said it would operate a separate flight from Muscat to London’s Heathrow Airport on Thursday.

The US-Israel war with Iran could cost the American economy as much as $210 billion, according to fiscal analyst Kent Smetters, director of the widely used Penn Wharton Budget Model.

The ongoing conflict is already driving disruption to trade, global energy markets and gasoline prices, though it is difficult to precisely estimate how much the war will impact the economy, Smetters told Fortune.

His predictions currently estimate a $115 billion economic loss, though that figure could range between $50 billion and the upper bound of $210 billion depending on the nature and duration of the conflict.

“One problem I have with cost-of-war calculations is that they really do ignore the counterfactual,” he told the outlet. “If Iran really did get a nuclear weapon, then we might have spent a lot more on military and even repair of cities later on.”

The chief of the World Health Organization has denounced continuing conflict in the Middle East after he says three paramedics were killed in Lebanon, saying, “Peace is the best medicine”.

Tedros Adhanom Ghebreyesus, director-general of WHO, wrote on X Tuesday, “The expansion of the conflict in the Middle East is increasingly impacting health services throughout the region”.

He said that three paramedics were killed in Lebanon and another 6 were injured “while recovering people injured by explosions”.

“Warring parties must abide by international humanitarian law and protect health workers, facilities and patients”, he said.

The White House has continued to offer a conflicting and rapidly evolving rationale for why Iran presented such an imminent threat to American forces and their allies across the Middle East that US President Donald Trump needed to use military force.

A disjointed messaging effort appears to be hindering the administration’s ability to sell the war to the American people, though, as polling indicates that a majority of Americans do not yet understand why the U.S. is at war with Iran now — or simply do not accept the White House’s reasoning.

At a bilateral meeting with Germany’s chancellor, Trump claimed without any proof that Iranian forces were preparing to attack US forces before the US or Israel launched any attacks at all.

“We were having negotiations with these lunatics, and it was my opinion that they were going to attack first,” said the US president. “They were going to attack if we didn’t do it. They were going to attack first, I felt strongly about that.”

Ayatollah Ali Khamenei’s son, Mojtaba Khamenei, is the frontrunner in the selection for the successor to Iran’s slain supreme leader, according to a new report.

The New York Times reported, citing Iranian officials familiar with the matter, that senior clerics were considering announcing Khamenei as the next supreme leader as early as Wednesday.

Other top contenders for supreme leader are cleric and jurist Alireza Arafi and Hassan Khomeini, grandson of Ayatollah Ruhollah Khomeini, the founder of the Islamic Republic, according to The New York Times.

Admiral Brad Cooper, commander of US Central Command, who leads American forces in the Middle East, has shared details about what he called an “unprecedented” operation to dismantle Iran’s security apparatus.

“More than 50,000 troops, 200 fighters, two aircraft carriers and bombers from the United States are participating in this operation, and more capability is on the way”, Cooper said in a newly released video. “These forces bring a massive amount of firepower, representing the largest buildup by the US in the Middle East in a generation”.

The US and its partner forces began striking targets last Saturday.

“We’re less than 100 hours into this operation, and we’ve already struck nearly 2000 targets with more than 2000 munitions”, Cooper said.

An 11-year-old girl was killed by shrapnel in Kuwait, the country’s health ministry has said.

In a social media post, the health ministry announced that the girl was hit by shrapnel in a residential area and died from her injuries, despite life-saving efforts.