The Irish police, known as Gardaí, found and took away cocaine worth around €2 million (£1. 7 million) during their searches in Dublin, Kilkenny, Waterford, and Ashbourne in County Meath.
They also discovered three Glock guns, a fake gun, tools for making drugs, and 1kg of cannabis worth about €20,000 (£17,000) during the operation.
Police stopped two cars in the Finglas area of Dublin just before 4:00 pm on Friday.
Four men, who were 22, 27, 32, and 55 years old, were taken into custody because the police thought they may have committed crimes related to drugs.
The items found during the searches included a machine for making drugs and a substance used to mix them.
The police also took €18,000 in money and a few communication devices.
Assistant Garda Commissioner Justin Kelly said that the recent operation carried out by the Garda National Drugs and Organised Crime Bureau, along with support from other police forces, shows how illegal guns and the drug trade are closely connected.
We understand that these kinds of dangerous weapons are used by organized criminal groups to scare, hurt, and kill people.
Stopping people from accessing illegal guns is a very important goal for the police in Ireland, called An Garda Síochána.
“I want to praise the brave officers who constantly put themselves in dangerous situations, like this operation, to keep our communities safe. “
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