Police in London braced for more demonstrations on Sunday as the war in Gaza continues to inflame tensions across the U.K.

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.

Hundreds arrested in London as pro-Palestinian group supporters deliberately defy new ban to challenge free speech limits.