Gardaí have carried out raids across 12 counties as part of an investigation into the possession and distribution of child abuse images.
Tens of thousands images and videos of child pornography were seized in searches carried out on 31 homes up and down the country.
The raids, under Operation Ketch took place over the past three days.
No details as to the location of the searches have been disclosed, though it's understood much of the focus centred on Leinster and Munster.
The operation was led by the Online Child Exploitation Unit (ONCE) and the Garda National Protection Services Bureau.
Law enforcement agencies in Canada, the US and other countries also assisted gardaí in the operation.