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Around 40 protesters were arrested after the day of action, said the Agence France-Presse, after a police source source said: “[The activists] entered by force [at around 9:00] and were stopped by law enforcement officers at Terminal 2A on the tarmac.�

Although the protesters managed to get close to where planes are parked, they did not “manage to access the runways�, the source . Air traffic was not affected, according to the police.

But the organisers, including environmental associations ANV-COP 21 and Alternatiba, said that “87 people were able to access the tarmac at Roissy and stop the takeoff of a plane�. Protesters wore T-shirts and held placards.

The demonstrations were part of a nationwide “day of action� called by ANV-COP 21 and Alternatiba, demanding a drop in air traffic, “a conversion of the [air traffic] sector�, and the end to a major planned extension of Roissy Terminal T4.

The project is expected to extend the airport’s capacity by 40 million passengers per year.

Association Action Climat Paris tweeted a video of the action, and said: “Terminal 4 [will be] the equivalent of traffic at Orly [airport] added to that of Roissy. Together let us say ‘stop’ to this climate-killing, useless project.�

Further protests took place elsewhere in the airport, including one that was attended by MPs from La France Insoumise party, Clémentine Autain and Manon Aubry.

Jean-François Julliard, director general at Greenpeace, who was present at the protests in Roissy, said: “We must stop enlarging airports, such as here at Roissy, with the Terminal T4 project, and we must end flights that are [for journeys] possible to do by train, and develop more night trains.�

Protests were also called in Marseille, Lille, Bordeaux, Toulouse, Nantes, Poitiers, Tours, Clermont-Ferrand, Bayonne and Chambéry.

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