Ireland is in a unique position heading into next week's Brexit vote, as it is the only country in the European Union that shares a land border with the United Kingdom.
Britons go to the polls on Thursday 23 June.
For the first time in a generation, border controls and customs checks between Northern Ireland and the Republic have become a distinct possibility.
RTÉ's Business Editor David Murphy assesses how border towns in the South could be affected by a UK decision to leave the EU:
Meanwhile, north of the border RTÉ's Brendan Wright reports on the Brexit divide among businesses in Northern Ireland: