Gardaí seized three firearms, ammunition and a bayonet from a house in Dublin last night after they responded to reports of an assault on a street in Crumlin.
Shortly before 10pm, gardaí received a call alleging an assault was taking place on Cashel Avenue, Dublin 12, and that a firearm had been produced, a Garda spokesman said.
Gardaí who attended the scene spoke to a number of people, and they then searched a house on Cashel Avenue.
During the search, a sawn-off shot gun, a replica AK47 and a replica handgun were found, along with 36 shotgun cartridges and a bayonet, the spokesman said.
A 33-year-old man and a 35-year-old woman were arrested at the scene. They are being detained at Crumlin and Sundrive Road Garda stations under section 30 of the Offences Against The State Act.
Gardaí said they conducted another search at Edenmore Park with "negative results".