On Monday, Zarif, Iran's most senior negotiator of the 2015 Iran nuclear deal, made a surprise announcement on his Instagram account about his resignation.

Axar.az reports citing IRNA.

In a letter to Iranian Foreign Minister Mohammad Javad Zarif, President Hassan Rouhani has refused to accept his resignation which he said is “inappropriate for the interests of the country”.

The statement comes after Zarif made on Monday a surprise announcement on his Instagram account about his resignation.

In the post, he apologised "for the inability to continue the service and for all the shortcomings during the service," but declined to reveal the reasons for the decision.