The Minister for Foreign Affairs has said the €1 billion the Government has planned for spending increases and tax cuts in the budget remains on track despite the Brexit referendum result.

Speaking on RTÉ’s Saturday with Claire Byrne programme, Charlie Flanagan conceded though that the situation is now less certain.

Mr Flanagan said any changes sparked by Brexit would be at least two years away.

But he said there needs to be a strict timetable for the negotiations on Britain's exit from the EU as a protracted period of uncertainty during which we don't know who will negotiate on behalf of Britain is unhelpful.

Yesterday, British Prime Minister David Cameron said it would be his successor, set to be elected in October,  who would begin the task to disentangling the UK from the EU.

Minister Flanagan said Ireland, as one of the 27 remaining EU member states, will play a unique role in these negotiations given its proximity to the UK.

He said it was important Ireland remains allied to the UK and the Government's priority is to ensure this country is not negatively impacted on in any new arrangement between the UK and the EU.

Mr Flanagan insisted there would be no immediate change to the border with Northern Ireland.

He said he will be meeting with Northern Ireland Secretary Theresa Villiers in Belfast on Tuesday to discuss the consequences for Northern Ireland but he stressed that the UK including Northern Ireland will remain part of the EU until negotiations on Brexit are concluded.

On the issue of a possible border poll, he said such a move would cause division and would be unhelpful at this time.

Asked about Ms Villiers' remarks on changes to Human Rights Law in the UK following the vote to leave the EU, he said the framework for Northern Ireland is the Good Friday Agreement and subsequent agreements and the Good Friday Agreement is the priority.

Ministry of Agriculture considers effect of Brexit on Irish farming

Minister for Agriculture Michael Creed has said his officials are working on dealing with the impact of the UK's referendum vote on the Irish farming industry.

He said the most immediate difficulty facing farmers was currency fluctuation.

Speaking to RTÉ’s One News Mr Creed said it was interesting to observe that when the sterling fell yesterday, the euro weakened also.

"What's important in this debate is that the relativities between the two currencies doesn't widen so that our exports are at more of a significant disadvantage,” he said.

"But, it's a space we're in and active in and working with the industry."

Minister for Agriculture says officials working on dealing with Brexit affect on Irish farming

Meanwhile, the Irish Farmers' Association chief economist has said Government institutions need to clearly state their plan to minimise currency instability following Brexit.

Rowena Dwyer said that if sterling weakens significantly against the euro it will impact negatively on the price of our exports going to the UK.

"Our sector is hugely dependent on the UK. As our main trading partner, we send over 40% of our agri-food exports to the UK,” said Ms Dwyer.

"2016 is a difficult year for farming with low product prices and it does not need to be added to by huge uncertainty around sterling."

Ms Dwyer added that there needs to be immediate efforts and signs to minimise disruption to trade.

"In the longer term for farmers what we are looking at is what will be the trading relationship between the EU and the UK and also the implications for the EU budget and CAP budget," she said.