
Iran said on Monday removal of US sanctions is Tehran's red line in talks with world powers in Vienna to revive a 2015 nuclear deal, an Iranian foreign ministry spokesman told a news conference, adding that talks
will resume on Tuesday.
On Friday, the United States restored sanctions waivers allowing international nuclear cooperation with Iran on projects designed to make it harder for Iran's nuclear sites to be used to develop weapons, although a senior State Department official said that was not a signal Washington was on the verge of reaching an agreement.