The operation is part of investigations into a number of gangs operating nationwide.
Over 150 gardaí are currently involved in a search operation in Coolock and Raheny in Dublin, targeting organised crime.
Searches of 39 properties began this morning.
The operation is part of investigations into a number of gangs operating nationwide, that are suspected of being involved in burglaries, drug trafficking, counterfeiting, theft and other property crimes.
Gardaí say the searches are continuing this afternoon.

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