The government has said supporters of a "terrorist organisation will feel the full force of the law" after a protest in support of the proscribed group Palestine Action led to more than 500 arrests on Saturday.

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.