Gardaí seized more than €270,000 worth of cannabis, recovered a stolen car and arrested four people in a series of raids in Dublin on Thursday and Friday.
On Thursday, gardaí from Ballymun discovered cannabis plants with an estimated value of €30,000 at a warehouse at Cloghran near Dublin Airport, along with a small quantity of amphetamines.
Three men, two aged in their 30s and one in his 40s, were arrested at the scene and a woman (30s) was also taken into custody. Cocaine was found in the car she was driving which was stopped near the warehouse as part of the operation.
The car was later confirmed to be stolen property.
The four were detained under Section 4 of the Criminal Justice Act and taken to Garda stations in north Dublin.
The woman was charged before a sitting of Dublin District Court on Friday in connection with the case, and two of the men arrested are due before the same court on Saturday evening.
The third man arrested was released without charge, and a file on his case is being prepared for the Director of Public Prosecutions.
A follow-up raid at a house in Kilmainham on Friday yielded an estimated €240,000 worth of cannabis herb, and there were no further arrests in relation to the discovery.
The raids were carried out by members of the Divisional Task Force based in Ballymun assisted by the Armed Support Unit as part of Operation Thor, and investigations are ongoing.