Four people are now in custody in connection with the seizure of 600 rounds of ammunition and a silencer in Dublin yesterday.
Three arrests come after a search of an apartment in Premier Square in Finglas last night by members of the Garda National Drugs Unit and the Organised Crime Unit.
A man (30) and two women aged 27 and 30 years-old were arrested during last night's raid.
A fourth person - a man in his 20s - was arrested this morning and is detained at Ballymun Garda Station under Section 30 of the Offences against the State Act.
Those arrested last night are all being held at Finglas Garda station - also under Section 30 of the Offences Against the State Act.
