Vienna, June 16 (RHC)-- Iran and the P5+1 group of countries are set to resume another round of expert-level nuclear talks in the Austrian capital of Vienna as a self-imposed June 30 deadline approaches.

Iranian deputy foreign ministers, Abbas Araqchi and Majid Takht-e-Ravanchi, are set to resume the negotiations about the text of a possible comprehensive deal on Tehran's nuclear program on Wednesday. Araqchi and Takht-e-Ravanchi wrapped up their five-day talks with European Union deputy foreign policy chief, Helga Schmid, who represents the P5+1 countries, in Vienna on Sunday and returned home early Monday.

However, the director general for political and international security affairs at Iran's Foreign Ministry, Hamid Baeidinejad, and Stephen Clement, an aide to Schmid, are still holding talks in Vienna about the annexes of the possible final agreement.

Iran and the P5+1 group of countries -- the United States, Britain, France, China and Russia plus Germany -- are seeking to finalize a comprehensive deal on Tehran's nuclear program by June 30th.