Gardaí from Carlow and Kilkenny have been involved in a major search operation in the south east today.
A number of people have been arrested in Wexford, as part of a garda operation targeting an organised crime gang.
The group is suspected of being involved in burglaries of commercial premises, and several houses were searched in Enniscorthy early this morning.
Officers seized cash and electronic devices – including phones and sat-nav systems.
A small quantity of cigarettes and financial documents were also recovered.
The three men and one woman are being held under Section 50 of the Criminal Justice Act, at stations in the South East.