Iranian nuclear negotiating team is to head to Istanbul on Thursday, ISNA reported.
The delegation led by Iranian main nuclear negotiator Saeed Jalili is to meet with the representatives of the five permanent members of the UN Security Council plus Germany.
Talks are to be convened on January 21-22.
The Iranian delegation includes the same officials who took part in the 3 previous rounds of talks in Geneva including Jalili's Deputy Ali Bagheri, Jalili's aide for Media Affaires Abolfazl Zohrehvand and Iranian Deputy Foreign Minister for European Affairs Ali Ahani.
Also the other group which includes the P5+1 deputy foreign ministers and the EU Foreign Policy Chief Catherine Ashton leave for Istanbul on Thursday as well.