More than 100 Gardaí executed a significant search operation across counties Donegal, Sligo, Monaghan, and Laois on Monday, 11 May 2026. The co-ordinated action, which also extended into County Tyrone in partnership with the Police Service of Northern Ireland (PSNI), targeted an Organised Crime Group (OCG) believed to be involved in money laundering and drug trafficking.

The operation involved 15 residential searches in East Donegal and Letterkenny, four in Sligo Town, and individual searches in Monaghan and County Laois. Simultaneously, PSNI officers conducted linked searches across the border in County Tyrone. During the raids, Gardaí seized over €26,000 and £12,000 in cash. Officers also recovered quantities of cocaine, cannabis, and tablets with an estimated street value of €40,000. Mobile phones and various electronic devices were also taken for forensic examination.

A man in his 30s was arrested in County Donegal in connection with the investigation. He is currently being held at a Garda station in the North Western Region under Section 50 of the Criminal Justice Act 2007.

The large-scale mission was led by detectives from the Donegal Division. They were supported by the Garda National Drug and Organised Crime Bureau (GNDOCB), the Armed Support Unit (ASU), the Garda Dog Unit, and detective units from Monaghan and Sligo.

Gardaí have confirmed that investigations into the activities of the organised crime group are ongoing.