Gardaí have released three people who were arrested after guns were seized in postal packages from the United States.
The parcels were intercepted ahead of delivery to addresses in Dublin city and county.
Drugs were also seized during searches of addresses in Stepaside, Carrickmines and Newcastle, Co.Dublin.
The seizures were part of a joint operation between the Special Crime Operations branch of the force and United States Homeland Security Investigations.
A file is being prepared for the Director of Public Prosecutions.