Police arrested more than 400 demonstrators who defied a government ban on Palestine Action.

The group was labeled a terrorist organization and banned after activists broke into an air base and damaged military aircraft to protest Britain’s support for Israel.

U.N. human rights officials and supporters criticize the ban as misusing terrorism laws and stifling legitimate free speech and civil liberties.

LONDON — British police scuffled with protesters outside Parliament on Saturday as they arrested more than 400 demonstrators who gathered to defy a ban on the group Palestine Action, which the government labels a terrorist organization.

Defend Our Juries, the campaign group organizing the protest, said 1,500 people took part in the London demonstration, sitting down and holding signs r

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