Gardaí say investigations are ongoing following a recent inter-agency operation in west Roscommon.
The operation was conducted in Ballaghaderreen on Thursday last and involved members of local drugs and immigration units as well as Revenue officials.
Gardaí say inspections were conducted at a number of business premises to assess compliance with a range of legislation.
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They say enquiries are ongoing and action has been instigated following the discovery of an immigration offence.
Similar operations are expected to be replicated across the division.
