How DID they get in? Security fears as Just Stop Oil break into Stansted’s VIP airfield and spray paint plane hours after Taylor Swift’s father landed in luxury jet

Security questions were raised today over how two Just Stop Oil activists managed to get into a private area of Stansted Airport and spray orange paint over two planes.

Jennifer Kowalski, 28, and Cole Macdonald, 22, were arrested on suspicion of criminal damage after gaining access to the airfield and damaging the private jets.

Just Stop Oil said pop star Taylor Swift‘s jet had landed at Stansted only hours before, but MailOnline can confirm that her plane was not one of the two targeted.

Swift is believed to have chartered the jet to take her mother Andrea and father Scott to London for her shows at Wembley Stadium from tomorrow until Sunday.

It touched down at about 11pm last night along with an array of goods including a case of wine, before the luggage was transferred into a convoy of seven vehicles.

Just Stop Oil later confirmed that its activists used a website which tracks the location of commercial planes and private jets to confirm that Swift’s was there.

Aviation expert Julian Bray told MailOnline this afternoon that because the protesters were entering a protected airport area, they could be prosecuted under the Air Navigation Laws with intent to danger an aircraft, rather than just criminal damage.

Just Stop Oil protesters Jennifer Kowalski (left), 28, and Cole Macdonald (right), 22, after they sprayed orange paint over parked private jets at London Stansted Airport in Essex today

Just Stop Oil protesters spraying orange paint over private jets at Stansted Airport today

He continued: ‘Harrods Aviation and others who control the private terminal need to rethink security as clearly this is lacking. Essex Police also need to raise their game as they seemed to be unaware of the serious security breach.

‘Aircraft concerned will need to be taken out of service, stripped down and forensically examined before repair in case additional perils are found which may affect future operations.

‘Really this activity is so dangerous and has to be robustly challenged and custodial sentences handed out. It is that serious a security breach.’

Scott was pictured at Stansted last night after disembarking the jet and is believed to have been accompanied by Andrea, although she was not seen by onlookers.

Just Stop Oil are thought to have staged their attack just after dawn today in a bid to attract maximum publicity in an apparent attempt to target Swift’s plane

Taylor Swift chartered a 2009 Dassault Aviation Falcon 7X jet to take her mother Andrea and father Scott to London and it landed at Stansted Airport at about 10.30pm last night (pictured)

Taylor Swif's father Scott Swift leaves the plane at Stansted Airport last night after its arrival

Luggage was moved from the aircraft into a convoy of seven vehicles at Stansted last night

The items transported to Stansted Airport last night appear to have included a case of Swift's favourite wine produced by Rombauer Vineyards in California's Napa Valley

Footage released by the campaign group showed a pair of activists spraying orange paint over two private jets parked on the ground close to the permitter fence at Stansted – but neither of them was Swift’s aircraft, suggesting it was parked in a more secure area of the airport.

Just Stop Oil protesters sprayed orange paint over private jets at Stansted Airport todayTaylor Swift performs during her Eras Tour at Murrayfield Stadium in Edinburgh on June 7