Police say the majority of arrests were for displaying placards in support of the banned group.

The number of people arrested for supporting banned group Palestine Action at a protest in central London has risen to more than 520. Only 18 of those people remained in custody on Sunday afternoon but were expected to be released on bail “in the coming hours”, the Metropolitan Police said.

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.