Palestine Action has been banned from protesting outside Parliament.
It comes after Sir Mark Rowley, the Metropolitan Police Commissioner, said he was “shocked and frustrated” that the group was planning the demonstration.
The force has now imposed an exclusion zone around Parliament, with protesters facing arrest if they enter the area.
Police have also said any demonstrations by the group in central London cannot begin before 12pm and must end by 3pm.
Yvette Cooper, the Home Secretary, is expected to announce plans on Monday to proscribe Palestine Action as a terrorist organisation after activists from the group damaged two planes at RAF Brize Norton, at a potential cost of millions of pounds.
This is a breaking news story, more to follow