There will be a 24-hour delay in the arrival in New York of Minister for Foreign Affairs Simon Coveney for his scheduled UN visit.
It is understood the decision was taken well in advance of today's Foreign Affairs Committee meeting.
It is expected he will arrive later on Wednesday and attend events in New York on Thursday.
Simon Coveney was due to attend a ceremony on Wednesday morning at the United Nations headquarters in New York honouring Irish UN peacekeepers.
He was then expected to chair a meeting of the UN Security Council on peacekeeping transitions, as part of Ireland's presidency of the council.
The purpose of the meeting is to explore how to manage the transition of UN peacekeeping operations to a more comprehensive engagement on peacebuilding in countries coming out of conflict.
It is understood that the discussion will instead be chaired by the Irish Ambassador to the UN Geraldine Byrne Nason.
When he arrives in New York, Mr Coveney is expected to take part in a number of engagements, including events at the United Nations, but a programme of events is still being finalised.
Additional reporting Brian O'Donovan