Gardaí have seized two drones and drugs worth €7,000 in an operation to prevent the supply of drugs into prisons in west Dublin.
Three men were arrested by Ronanstown gardaí on Friday and Saturday and have been charged.
On Friday a man in his 20s was arrested and a drone worth €2,500 was seized along with a mobile device.
Controlled drugs valued at €7,000 were seized on Saturday, together with a drone worth €3,000. Two men aged in their 20s and 30s were arrested.
Gardaí said the drugs will be forwarded to Forensic Science Ireland for analysis and the drones will be subject to further technical examination.
The three men arrested in connection with this investigation have since been charged.
They are scheduled to appear before the courts today.
The arrests and seizures are part of Operation Throwover where the gardaí are supporting the Irish Prison Service to prevent illegal drugs and other contraband getting into prisons.