Additional time for questioning of men over 'dissident activity'
Last updated 3rd Dec 2017
The trio were arrested in the Eglinton and Dungiven areas on Friday morning.
Two of the men are aged 33 and 43, while the third man being questioned at Musgrave Serious Crime Suite is 49.
Police had conducted searches of a quarry area on the Dernaflaw Road and recovered a number of items.