Greta Thunberg has been arrested in central London during a demonstration supporting Palestinian prisoners. She held a sign expressing support for the terror-designated group Palestine Action, violating UK terror laws. The incident is reported by Sky News.
Greta Thunberg, the Swedish climate activist, was arrested during a Palestine demonstration in central London on December 23, 2025. According to Sky News and London police, the arrest occurred because Thunberg held a sign reading 'I support the Palestine Action prisoners. I am against genocide.' The sign showed support for members of the banned organization Palestine Action, who have been on hunger strike in custody for several weeks.
Palestine Action has been designated a terror organization in the UK since July 2025, when parliament banned the group after activists broke into a British airbase and vandalized two tankers. The ban has been criticized as an attack on freedom of speech. It is illegal to participate in or publicly support the group, and similar cases could lead to up to six months in prison, according to BBC, though there are no guiding precedents.
A video on the platform X shows Thunberg sitting on the ground with the sign, after which a police officer takes it from her and speaks to her. On October 5, nearly 500 demonstrators were arrested in London during a protest in support of Palestine Action.
Terror researcher Magnus Ranstorp comments: 'It can be serious consequences, the British are strict with such things. But it's hard to say exactly what it can result in without looking at similar cases.' Penalties range from fines to long prison terms. No further details on Thunberg's legal process are known at this time.
