Police have arrested 466 people in central London on Saturday for protesting the British government’s decision to ban the pro-Palestinian activist group Palestine Action under anti-terrorism laws.

Police in London have detained more than 466 people who were protesting the United Kingdom’s decision to ban the Palestine Action Group, marking the “largest ever mass arrest” at a single protest in the British capital, according to campaigners.

Every person arrested on suspicion of supporting terrorist group Palestine Action in Westminster on Saturday has been released. The total number handcuffed had risen to 522 after hundreds turned out to back the group,