At least ten Greenpeace activists have been arrested after blocking the entrance to BP's headquarters in central London.<br /><br />Footage shows activists being removed from the entrance to the building in St James's Square by police officers on May 20.<br /><br />''Protesters had been camped outside the HQ in boxes, where they intended to stay at least a week. As footage shows, these had been broken into, presumably by police, by the end of the first day,'' the filmer said.
