36 weapons were also seized this week across the region.
Revenue Officers have seized contraband worth an estimated €660,650 in the Midlands, Dublin and Rosslare.
20.6kg of herbal cannabis was discovered with an estimated value of over €413,000 through intelligence led operations.
Almost 60kg of edibles, with an estimated value of €55,000, and other illicit drugs, with an estimated value of €20,300 were also uncovered.
The parcels searched by officers in the Midlands and Dublin came from Canada, the USA, Spain, Germany, Poland, Slovenia, Czech Republic, India, the UK, Netherlands and France.
They were destined for addresses across the country.
Almost 640 litres of alcohol with a retail value of over €8,000, and representing a potential loss to the Exchequer of over €4,750, was also found, with 36 weapons also seized in the Midlands.
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