It's not clear if Swift's jet was one of those that has been targeted by the eco-protesters, who say they are demanding an "emergency treaty" to end the use of fossil fuels by 2030.

The group posted videos on social media of them breaking into the private airfield at Stansted Airport, where they said the star's jet was stationed.

The footage shows two protesters, named by the activists as Jennifer Kowalski and Cole Macdonald, cutting a hole in a fence and spraying orange paint over planes.

In a warning of further demonstrations, the group said areas of "key importance to the fossil fuel economy" will be targeted around the world this summer unless leaders "act to protect us".

On Thursday morning's incident, Just Stop Oil said: "At around 5am Jennifer Kowalski and Cole Macdonald entered the private airfield at Stansted airport where Swift's jet is currently stationed.

"The pair painted two private jets using fire extinguishers filled with orange paint."

Ms Maconald, 22, from Brighton, said in a statement shared by the group we are "living in two worlds" - one where billionaires live in luxury and another where "countless millions" endure "unliveable conditions".

Sustainability manager from Dumbarton Jennifer Kowalski, 28, said we all "have to be considering what we can do each day to change the course our society is on".

Yesterday the group sprayed orange paint on Stonehenge.

And there could yet be more incidents, as Just Stop Oil warns of "resistance" this summer if the government does not take "meaningful action".

"Whilst governments are allowing oil corporations to run amok destroying our communities, the actions of individuals mean very little," the group said.

"That's why Just Stop Oil is demanding that our next government sign up to a legally binding treaty to phase out fossil fuels by 2030.

"Failure to defend the people they represent will mean Just Stop Oil supporters, along with citizens from Austria, Canada, Norway, the Netherlands and Switzerland will join in resistance this summer, if their own governments do not take meaningful action."

Essex Police and Stansted Airport have been approached for comment.