Just Stop Oil activists target Heathrow
Two people have been arrested.
Two Just Stop Oil activists have been arrested after they sprayed orange paint on departure boards at Heathrow Airport.
The Metropolitan Police said the pair were held on suspicion of criminal damage.
Officers "remain in the area to deal with any further offences", the force added.
The incident happened inside Terminal 5 on Tuesday morning.
Climate activists have repeatedly targeted airports around the world in recent days, in a campaign named Oil Kills.
Just Stop Oil said 21 groups across 12 countries have taken action at 18 airports so far.
The group issued a statement from Phoebe Plummer, 22, who was one of the two suspects arrested at Heathrow.
She said: "People around the world are rising up to demand an end to oil by 2030.
"This is an international problem, so ordinary people are doing what our politicians will not, working together globally to put a stop to the harm and suffering that fossil fuels cause."
Jane Touil, 58, who was the other person arrested, said: "Ordinary people have to stand up and make their governments do the right thing, because without pressure from us, they won't.
"I feel so angry and betrayed that politicians have let this happen when they've known about climate breakdown for over 50 years."