Almost 70 people were arrested at a protest in support of proscribed organisation Palestine Action outside the Labour Party conference on Sunday afternoon.
Merseyside Police said 66 people were arrested, with two subsequently released.
"We can confirm that officers arrested a total of 66 people during a protest in Liverpool City Centre yesterday, Sunday 28 September," police said.
"At around 2.30pm, a protest from Defend Our Juries assembled near The Wheel of Liverpool.
TRENDING
Stories
Videos
Your Say
"Some of the people in attendance displayed material in support of Palestine Action, who are a proscribed terrorist organisation."
The force said after the two were de-arrested, the 64 people were charged on suspicion of the terrorism offence.
Those arrested were aged between 21 and 83 years old.
"They were taken into police custody and have now been released on bail," the force added.
Demonstrators holding up signs in support of Palestine Action in Liverpool
|GETTY
Palestine Action was banned as a terror organisation in July after the group claimed responsibility for an action in which two Voyager planes were damaged at RAF Brize Norton on June 20.
The fate of hundreds arrested for allegedly supporting Palestine Action remains in limbo if a legal challenge to the group's proscription is blocked.
The Home Office asked last Thursday to overturn a judge's decision to grant Palestine Action co-founder, Huda Ammori, a judicial review of the ban.
It places the group alongside the likes of Islamic State and the neo-Nazi group National Action.
Protesters in Liverpool
|GETTY
Home Office representative, Sir James Eadie KC, said the High Court's decision was wrong.
He said it was due to there already being a mechanism to challenge proscription by appealing to the Home Secretary and then the Proscribed Organisations Appeal Commission.
Mr Eadie said in written submissions that there was "nothing exceptional" about Ms Ammori's case.
However, Ms Ammori's representative Raza Husain KC said the case was "unique".
The Home Secretary has 90 days to respond to a challenge to proscription before the Proscribed Organisations Appeal Commission process can start.
Mr Husain said that the High Court judge was right to raise concerns that the process under the Proscribed Organisations Appeal Commission would not be heard until the middle of next year.
More From GB News