Around 40 members of the far-right organisation the English Defence League have run towards police in Woolwich following today's attack in the area.
Officers are now flooding the streets after the organisation called on its members to meet in the area to stage a protest.
ITV News has uncovered a video showing Woolwich suspect Michael Adebolajo speaking at a demonstration at Harrow Central Mosque in 2009.
Documents suggest Security Services were trying to recruit Woolwich suspect Michael Adebolajo and had also approached members of his family.
Police in Kenya say they did everything they could to highlight their concerns about Michael Adebolajo.