Four men have been remanded in custody in connection with the seizure of €2m worth of heroin at Robertstown, Co Kildare, last Thursday.
The men appeared before a special sitting of Naas District Court this morning.
24-year-old Ian Demon of Deansrath Avenue, Clondalkin, 34-year-old Keith Browne of Deanstown Road, Finglas, and 33-year-old Alan Cleary of Foxdean Green, Clondalkin, were charged with possession of heroin.
They were also charged with possession of a controlled drug with intent to sell or supply.
Michael Moran of Mylerstown, Robertstown, Co Kildare was charged with allowing the preparation of a controlled drug on his property.
All four were remanded to appear before Cloverhill District Court next Friday.
A fifth man arrested in connection with the seizure was released without charge.
A file is being sent to the Director of Public Prosecutions.
Elsewhere, a 43-year-old man is due in court in Blanchardstown tomorrow in relation to a €6.5m seizure of cannabis in Dunboyne, Co Meath, on Thursday.
He was arrested in Carlow yesterday in connection with the seizure.
A 41-year-old man has been charged in connection with the seizure.