British police have arrested climate activist Greta Thunberg during a pro-Palestinian protest in central London.

The detention, under terrorism legislation, was linked to a placard referencing a banned group.

British police have arrested climate activist Greta Thunberg during a pro-Palestinian protest in central London. The detention, under terrorism legislation, was linked to a placard referencing a banned group.

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Greta Thunberg listens attentively to other speakers during the event at Dalymount Park in Dublin
Thunberg has spoken out previously about hunger strikers who are in prison awaiting trial.

British police arrested Swedish activist Greta Thunberg on Tuesday during a pro-Palestinian protest in London, according to UK-based campaign group Defend Our Juries.

The group said Thunberg was arrested under the Terrorism Act after holding a sign stating support for prisoners linked to Palestine Action, an organization that the British government has proscribed as a terrorist group.