Swedish activist Greta Thunberg was arrested in central London during a demonstration in support of Palestine Action hunger strikers on Tuesday.City of London Police said that a 22-year-old woman was arrested for displaying a placard in support of Palestine Action under terrorism charges.

Greta Thunberg has been arrested at a demonstration in support of the Palestine Action protesters who are on hunger strike in prison, according to the Prisoners for Palestine protest group. The 22-year-old activist was detained in the City of London after attending the scene of the early-morning demonstration on Fenchurch Street.

Thunberg, 22, joined a protest Tuesday morning that opposed the treatment of people being held in prisons before trials relating to Palestine Action activities.

The activists accuse the government of abandoning its own prison safety policy framework and claim their previous letters to Mr Lammy have received no response. The urgent legal communication demands a response within 24 hours, stressing the increasing risk to the strikers' lives and requesting an urgent meeting to discuss the situation.