Gardaí and the Criminal Assets Bureau carried out searches in Dublin this morning as part of what was described as an investigation into organised crime.
Searches took place on open ground near Cabra and Finglas, a Garda spokeswoman confirmed.
The operation involved officers from the National Bureau of Criminal Investigation, the Criminal Assets Bureau, Garda Air Support Unit and the Garda Dog Unit.
The spokeswoman said no arrests had been made.