A man and a woman in their 40s were arrested during a search operation in Wicklow yesterday.
Gardaí are continuing to question a man and a woman after a Dublin shop was held up at knifepoint.
A sum of cash was taken during the robbery that happened shortly before 8 o'clock last Friday night in Dun Laoghaire.
Two people entered the shop, threatening staff with a knife.
A man and a woman in their 40s were arrested during a search operation in Wicklow yesterday and are being held at a Garda Station in Dublin.