Taoiseach Enda Kenny is visiting Northern Ireland on Thursday to continue discussions on the impact of Brexit.
He will be meeting members of the Newry Chamber of Commerce and Trade before heading to Stormont to meet Ulster Unionist leader Mike Nesbitt, SDLP leader Colum Eastwood and deputy First Minister Martin McGuinness.
The Irish premier is stepping up negotiations and Thursday’s discussions follow his All-Island Civic Dialogue on the issue in Dublin.
He warned at the event that the Prime Minister could trigger Article 50 within weeks as she faces "quite vicious" leaders around the European table.
However a Downing Street spokesman later said it remained Mrs May's position that Article 50 would be triggered by the end of March 2017 but not before the end of 2016 - leaving January, February and March as the only possible dates.