Arrests were made as pro-Palestinian protesters chanted “f--- your Jewish state” in central London on Saturday.
Pro-Israel counter-protesters chanted “there is no genocide” at thousands of pro-Palestinian demonstrators.
Marchers gathered across the country calling for the ban on Palestine Action to be reversed, amid police warnings that those showing support for the proscribed group faced arrest.
Demonstrations were held in Manchester, Edinburgh, Bristol, Truro and London as part of a campaign coordinated by the campaign group Defend Our Juries, which has already seen dozens arrested.
In London, a small group of activists from campaign group Stop The Hate showed their support for Israel. One shouted: “You use genocide as an excuse of your hatred for the Jewish state.”
They were met with shouts of “fascist” and “f--- your Jewish state” by the pro-Palestinian marchers.