Homes were also searched in Naas.
Two men remain in Garda custody after cocaine worth 8.4 million euro was seized in County Westmeath.
It was found after two vehicles were stopped and searched near Lough Owel.
It's believed the drugs were flown into County Longford before being seized.
Homes were searched in Naas, and in Waterford city, while a light aircraft was seized at a commercial airfield in Longford.

Minister Heydon Accuses IFA Of Misleading Farmers In Bord Bia Dispute
IFA Protest Outside Minister Heydon's Constituency Office In Newbridge Today
Kfm Obituary Notices (Saturday)
Garda Warns Locals Of Newbridge Main Street Road Closure Due To IFA Protest
BREAKING: Social Democrats Cllr Pat Balfe Announces Resignation From Social Democrats Party
Liam And Lily Were The Most Popular Baby Names In Kildare Last Year
Reminder To Landowners: Hedge-Cutting Season Is Ending This Weekend
Homeless Figures Continue To Rise In Kildare, As January Sees Record Number People In Emergency Accommodation