Anti-war campaigners have today been protesting against the use of drones outside RAF Waddington, Lincolnshire.
ITV News' Carl Dinnen reports:
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Political parties across the country suspended their General Election campaigns following the Manchester Arena terror attack on Monday.
Investigators believe Mr Kushner has significant information relevant to their inquiry, officials told NBC News.
The men were detained as part of an investigation by MI5 and the Metropolitan Police's Counter Terrorism Command.