A group calling itself Heathrow Pause planned to disrupt Heathrow with drones on Friday to protest plans for a third runway at Europe's busiest airport. The group said members Roger Hallam and Mike Lynch-White were arrested while being interviewed at a cafe by a German magazine. Three others were detained in north London.

Deputy Assistant Commissioner Laurence Taylor said Thursday's arrests were "a proportionate response to preventing criminal activity that could significantly impact on a major piece of national infrastructure."