Event organisers said it would show the "resistance" to the ban on the group was "stronger than ever".

People seen being carried off by officers at first mass demo since group’s ban was ruled unlawful by high court

London police arrest 523 protesters opposing the ban on Palestine Action, following a High Court ruling deeming it unlawful.

Event organisers said it would show the "resistance" to the ban on the group was "stronger than ever".

Palestine Action was proscribed as a terrorist organisation last July. The High Court in mid-February upheld a challenge to the ban, saying it had interfered with the right to…