It'd believed the ships were monitoring under-sea cables.
A midlands security analyst believes the Russian vessels seen in Irish waters in recent days were likely monitoring under-sea cables, connecting the US and Europe.
The Defence Forces have confirmed four vessels were spotted off the south coast.
The Russian ships were monitored by Irish air and naval patrols, and have since departed the area.
Defence expert, Mullingar's Declan Power explains the significance of the undersea cables in the area:
Pilot Programme For Parents Of Neurodivergent Children Launches In Laois
Midlands Simon Community Receives Major Funding
Emergency Services Call For Safety This Halloween
Midlands Homelessness Figures Continue To Rise
Westmeath Woman Wins Over €45k in Telly Bingo
Offaly Comedian Urges Men To Check For Testicular Cancer
Tánaiste Reviews Infantry Battalion In Westmeath Ahead Of Lebanon Deployment
Laois TD ‘Couldn’t Stomach’ Taoiseach’s Fine Gael Backing
Disruption On Midlands Train Services Expected This Weekend
Man Escapes Injury After Car Fire In Westmeath
Midlands Soldiers Taking Part In Latest Deployment To Lebanon
Popular Laois Forest Named In Coillte Top 20
Laois Author Recounts First Meeting With F1 Legend Eddie Jordan
Truck Driver Jailed For Five Years Over €2.8m Cocaine Haul
ESB Networks Invests €6.5m In Laois Training Centre
Offaly GAA Calls For End To Allianz Sponsorship
IFA Concerned Over Rushed Safeguard Approval For Mercosur
Westmeath Refuge Centres Step Up Support For Women And Children
Frightfully Fun Events Taking Place In The Midlands This Halloween
Social Finance Boosts Westmeath Boat Club