Greta Thunberg arrested during Palestine Action protest in London

“She was arrested under the Terrorism Act for holding a sign which read ‘I support Palestine Action prisoners. I oppose genocide’.

"Amongst their demands, the hunger strikers called for Elbit to be shut down and for the ban to be lifted. If the government won't listen, the people will.”

According to Sky News, City of London Police said a 22-year-old woman has been arrested for displaying a placard in support of a proscribed organisation, Palestine Action, contrary to Section 13 of the Terrorism Act 2000.

A City of London Police spokesperson said: "At around 7am this morning, hammers and red paint were used to damage a building on Fenchurch Street.

"A man and a woman have been arrested on suspicion of criminal damage. They glued themselves nearby, and specialist officers are working to release them and bring them into police custody.

"A little while later, a 22-year-old woman also attended the scene."

Prisoners for Palestine describes itself as “a prisoner-led collective in Britain representing all those detained under charges related to Palestinian liberation”.

Eight prisoners – all currently facing charges related to alleged break-ins or criminal damage carried out on behalf of Palestine Action – joined a hunger strike, beginning in November.

In recent days, three of the group have quit the strike, while another is now described by supporters as “intermittently refusing to eat” because of an underlying health condition. A number of the group have also been hospitalised since the strike began.

According to Prisoners for Palestine, the group has five demands: ending all “censorship”, immediate bail for those charged with offences related to their pro-Palestinian advocacy, the guaranteed right to a fair trial, deproscribing Palestine Action and shutting Israeli arms firm Elbit down.

Commenting earlier this week, a Ministry of Justice (MoJ) spokesperson said: "We want these prisoners to accept support and get better, and we will not create perverse incentives that would encourage more people to put themselves at risk through hunger strikes."