Many people made interventions, from a statement from Babels (the volunteer network of interpreters) to an Indymedia Volunteer, and even one of the low paid cleaning staff at Alexandra Palace during the half hour open microphone session.
The responses of the delegates waiting for the other plenary was mixed. But many were positive, particularly their reactions when they realised the stage intervention was only for half an hour and that the plenery was going to continue.
The hundreds of activists then left the plenary space to allow the planned event on fighting facism and and racism in europe to go ahead (without Ken Livingstone Mayor of London... it seems he had in fact pulled out of the panel earlier in the afternoon after news of the planned intervention filtered through).
After the hundreds of activists left Alexandra Palace, they took to the streets marching down the hill taking up the road. Soon they were met by a line of police who tried to push them out of the road and onto the pavement. In the scuffle the police hit several people and arrested at least one person.
The Assembly of Social Movements later decided to send a delegation to the police to complain about the police over reaction on the slopes of Alexandra Palace - next to the ESF.