Gardaí discovered the drugs in two separate searches.
Gardaí and Revenue have seized suspected cannabis worth around €150,000 during an operation in Offaly.
Around 5.5kg of suspected herbal cannabis was recovered by Revenue officers, with a further two kilograms seized during follow-up Garda searches.
A man in his 30s has been arrested and is being questioned at a Garda station in the county under drug trafficking legislation.
The seizure was part of an intelligence-led operation involving Revenue, the Garda National Drugs and Organised Crime Bureau and the Offaly Divisional Drugs Unit.
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