Just Stop Oil have warned they will disrupt Britons’ summer holidays with a plan to target airports as part of a campaign of “civil resistance”.

The group did not specify which airports they would be targeting, or when the protests would be taking place.

However, it said it would “continue to take the proportional action necessary” going forward.

A spokesperson from the group said: “Until leaders act to protect us, Just Stop Oil supporters will continue to take the proportional action necessary to generate political pressure.

“This summer airports will be declared sites of civil resistance.”

It comes after two JSO protesters in their 80s targeted the Magna Carta in the latest case of activism.

Reverend Dr Sue Parfitt, 82, and Judy Bruce, an 85-year-old retired biology teacher, caused a commotion at the library after smashing the glass enclosure around the historic document.

The demonstrators then glued their hands together and demanded an emergency plan to stop oil by 2030.

Standing by the Magna Carta, the pair also held a sign which read “the Government is breaking the law”, and could be heard saying: “Is the Government above the law?”