IRNA � Iranian President Hassan Rouhani said at the UN General Assembly on Wednesday that it will be a great pity if the nuclear agreement were to be destroyed by 'rogue� newcomers to the world of politics.

'I declare before you that the Islamic Republic of Iran will not be the first country to violate the agreement; but it will respond decisively and resolutely to its violation by any party,' he said while addressing the United Nations General Assembly.

'It will be a great pity if this agreement were to be destroyed by 'rogue� newcomers to the world of politics: the world will have lost a great opportunity. But such unfortunate behavior will never impede Iran�s course of progress and advancement.'

The President said that 'By violating its international commitments, the new US administration only destroys its own credibility and undermines international confidence in negotiating with it, or accepting its word or promise.'

Iranian President started delivering his speech at the 72nd UN General Assembly meeting in New York few minutes ago.

Iranian President Hassan Rouhani arrived in New York on Sunday to attend the 72nd session of the United Nations General Assembly.

He has held several meetings with his counterparts on the sidelines of the UN General Assembly and made several interviews with the international media.

President Rouhani is attending the UN General Assembly meeting for the fifth time.