The US military evacuated aircraft from an airbase in Britain on Monday following a threat from Iran, it has been reported.

The reported two US refuelling tankers stationed at RAF Mildenhall in Suffolk were diverted to Germany on Monday morning, while several other tankers at the base were moved to Germany and other locations later in the day.

Here is everything we know so far about the incident.

What happened?

The exact nature of the threat, including whether it is an imminent risk or a more general response, is not yet known and remains under discussion among US officials.

The threat level at the base has been upgraded to Force Protection Condition (FPCon) Charlie, the second highest defensive threat level used by the US Department of Defence.

FPCon Charlie is used when an incident has occurred or intelligence suggests a form of terrorist action targeting personnel or facilities is likely.

At least seven other planes were evacuated from RAF Mildenhall later in the day, according to .

A Ministry of Defence spokesperson said in a statement: “We do not routinely comment on the activity of other nations.

“Aircraft and other assets move regularly according to operational requirements.”

What has happened previously?

The development comes weeks after the US withdrew its bombers from RAF Fairford following a suspected Iran-related terror incident near the airbase.

Seven British men were arrested over a suspected terror plot near the airbase in September after reports of suspicious vehicles near the Gloucestershire village airbase.

Police initially arrested five men who were found in vans near the perimeter of the airbase with containers of petrol, but no explosive devices.

Two of the men have since been charged under the National Security Act and police believe they were acting under the instructions of an Iranian handler.

Counter-terror police are continuing to investigate the incident and its links to Iran.

What has Trump said?

On Monday, President Donald Trump said the US was “seeing positive momentum toward an end” to the conflict with Iran.

He wrote on Truth Social: “I had an excellent conversation with Sheikh Mohammed bin Abdulrahman bin Jassim Al Thani, the Prime Minister of Qatar, wherein much was discussed with respect to the Islamic Republic of Iran.

“Most importantly, Qatar, Saudi Arabia, UAE, Bahrain, Kuwait, and others, would prefer the status quo, in other words, a continuation of the Greatest Naval Blockade in History, and the new Operation Iron Gate — Therefore, Land and Sea. All have agreed that Iran cannot have a Nuclear Weapon — That is non-negotiable!

“Should there be any change with respect to developments in the Middle East, the United States of America is ‘locked and loaded’ and ready to go.

“At this point, however, that seems to be quite unlikely. Israel, and the entire Middle East, are protected from Iranian danger and threats.

“We are seeing positive momentum toward an end to this Conflict, and will ensure that America’s interests are at all times protected. At the conclusion of this Military Engagement, the American People, and the World, will be far safer and more secure.”

What has the UK said?

Cabinet minister Lucy Powell said the security of military bases in the UK was kept under review.

The Education Secretary told : “I can’t comment on those sort of live operations, as you know.

“But we’re constantly keeping the security of our bases under review and, as we’ve seen with other cases recently, we take firm and quick action where we need to.”