A senior Iranian security official said on Monday that progress in talks to salvage Iran's 2015 nuclear deal was becoming "more difficult" as Western powers only "pretended" to come up with initiatives.
The indirect talks in Austria between Iran and the United States resumed last week after a 10-day break. Delegates have said the talks have made limited progress since they resumed in November after a five-month hiatus prompted by the election of hardline Iranian President Ebrahim Raisi.
