Ahead of this year's G8 summit, London police have moved on a group of anti-capitalist protestors named StopG8. Last month the group issued a map of 100 targets in order that people might "show their anger".
Police are currently executing a search warrant at Beak Street, W1 #J11— MPS Events (@MetPoliceEvents) June 11, 2013
Over 100 officers in riot uniforms formed a cordon around a central London building, circling protestors around Beak Street before the protest was due to begin.
2009 saw police make over 100 arrests after protests to coincide with a G20 economic summit in London became violent.
A London police spokesman:
There's a warrant being executed there. Our protest liaison teams are actively working to engage with those wishing to protest so that we can facilitate peaceful protest.