Iran's foreign minister told state TV that the talks 'made very good progress and entered into the elements of an agreement very seriously, both in the nuclear field and in the sanctions field.' He said the next round would take place in 'perhaps less than a week,' with technical talks at the UN's nuclear agency to begin in Vienna on Monday.

Foreign Minister Araghchi's remarks ahead of Geneva talks come as second US aircraft carrier heads towards Middle East.

Spokeswoman Fatemeh Mohajerani added that Iranian Foreign Ministry officials will report on the progress of the consultations