Police said they believe the recovery of a rocket launcher "has saved lives".
The Police Service for Northern Ireland has has been on high alert after a series of attempts by republican dissidents to kill members of the security forces.
These weapon systems are clearly intended to kill and we should be in no doubt that the recovery of these items has saved lives.
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Through the day we'll see plenty of sunny spells but there will be a risk of showers too as they filter down from the northwest.
Pilots say they are rostered in 'illegally' and feel fatigued from working too many hours.
The alleged hacking follows reports of similar attacks on other Democratic organisations, amid fears of state-sponsored hacking.