Nine addresses in Dublin, suspected of being used by criminal gangs, have been searched by Gardaí.
Two firearms, 300 rounds of ammunition and over €47,000 in cash was seized during the operation, that involved five units of the Gardaí.
Dublin city council has taken possession of, and boarded up, a number of the properties.
An incident room has been set up at Finglas Garda Station and Gardaí say they'll continue to maintain high visibility and community patrols in the area.
