Speaking to reporters, Zarif said the talks have entered a critical stage and the parties are working on a text requiring consensus by all the seven states.
He said that Iran has its own concerns and the six foreign ministers have been split in views.
He said that the work got difficulty. it is natural, because there are six countries having different views and interests.
The Islamic Republic of Iran is ready to reach an agreement if they settle their differences, he said. ˈHowever, we have had a great deal of progress.”