The White House national security adviser said the Vienna talks were a serious way to discuss the details of lifting Iran's sanctions and nuclear restrictions.

Iran PressAmerica: Indirect negotiations in Vienna on a return to compliance by the United States and Iran to the Iran nuclear deal are in “an unclear place,” US National Security Adviser Jake Sullivan said on Friday.

“I’m not going to characterize the substance of the negotiations at this point because they are in . . . an unclear place,” Sullivan told an Aspen Security Forum webinar. “We’ve seen the willingness of all sides, including the Iranians, to talk seriously about sanctions relief . . . and a pathway back into the JCPOA.”

“But it is still uncertain if this will culminate in a deal in Vienna,” he said.