The National Treasury Management Agency may issue some additional debt before the end of the year, its chief executive said today.

John Corrigan's comments follow yesterday's €5 billion bond issue that covered nearly all of the country's 2013 funding needs.

"We will aim to have between 12-15 months of funding come the end of December done. That leaves a small amount to do," the NTMA chief said.

"We may tap the market opportunistically or we may return to a small auction programme,'' he added.

Mr Corrigan said that the international institutional investment community had shown a strong expression of confidence in Ireland.

He said the sale is a positive development and shows that Ireland is well positioned to exit the bailout programme.