The U.S. State Department said on Thursday that it hopes Iran will now seize the opportunity to seek diplomatic solutions and will return to Vienna talks on resuming compliance with the 2015 Iran nuclear deal.

"The opportunity to achieve a mutual return to compliance with the JCPOA won't last forever," State Department spokesman Ned Price told reporters at a regular briefing, referring to the deal by its formal name: the Joint Comprehensive Plan of Action (JCPOA).