The co-founder of activist group Palestine Action will Wednesday challenge a UK government ban under anti-terror laws that has led to mass arrests, sparking free speech and civil liberties concerns.

United Nations human rights chief Volker Turk has said the ban "appears disproportionate and unnecessary", while Europe's human rights watchdog, the Council of Europe, criticised "excessive limits" on the right to protest.

The UK government proscribed the pro-Palestinian group in July days after activists, protesting the war in Gaza, broke into an air force base in southern England.

Prosecutors have said they caused an estimated £7 million ($9.3 million) of damage to two aircraft at the base.

The legal action brought by the group's co-founder Huda Ammori at London's High Court is expected t

See Full Page