Among those who visited the communities and local government secretary was Waltham Forest LBC's leader Clyde Loakes (Lab) who insisted the council, covering Walthamstow where nine people were arrested, had relatively few problems with extremists.
Cllr Loakes said: 'Where such people have operated on the mosque steps we've allowed the mosques to deal with it. They want the ownership to deal with the problem.'
He said longstanding plans to deal with such incidents had been activated, ensuring community leaders worked alongside council and police officers from the earliest opportunity.
Council media officers also gave advice to a local imam on how he should answer questions from media organisations including the American AMC and CNN networks.