A total of 67 people have now been charged after being arrested by the Met Police for allegedly showing support for the proscribed group Palestine Action.
Those charged – whose ages range from 83 to 21 – were arrested in central London on either 5 July or 12 July, the force said.
Hundreds more people have since been arrested by the Met for displaying an item in support of the group.
The force said they had been charged with an offence under section 13 of the Terrorism Act and faced a maximum sentence of six months’ imprisonment.
Police said those charged had been sent a postal charge requisition notifying them of the details and when they are due to appear in court.
It added that it continued to “pass case files” to the Crown Prosecution Service.
Cdr Dominic Murphy, from the Met’s counter-terrorism command, addressed claims that people attending protests could impact on police resources, saying: “The notion that by coming out and showing support towards a proscribed terrorist group will overwhelm us is completely misguided.”
Those charged come from all over Britain.
Of the total, 23 individuals have been charged in relation to alleged actions on 5 July and are due to appear at Westminster Magistrates’ Court on 13 October.
Another 41 people are charged in relation to alleged actions on 12 July and are due to appear at the same court on 13, 14 or 27 October.
Three others, who were previously also charged with an offence contrary to section 13 of the Terrorism Act, are accused in relation to alleged actions on 5 July and will appear at the court on 16 September.
More than 700 people have been arrested by the Met since Palestine Action’s proscription on 5 July.
Last month, the group won permission to challenge the ban, with the case to be heard at the High Court in November.
Along with other campaign groups, it argues the ban breaches the right to free speech and has acted as a gag on legitimate protest.
But the home secretary underlined her defence of the ban last week, saying Palestine Action was more than “a regular protest group known for occasional stunts”.
Writing in the Observer, Yvette Cooper said the group had claimed responsibility for incidents that saw those allegedly involved subsequently charged with a range of crimes, including violent disorder and aggravated burglary.
She added that the Crown Prosecution Service (CPS) had assessed these charges have a “terrorism connection”.
