Iranian negotiator says ` ` negotiations ( are needed ) at higher levels '' Russian and Chinese foreign ministers are n't expected until Monday . Do we want a deal or a war ? ` Top Western diplomats rushed to Tehran earlier Friday amid rising pressure for talks . ` ` Some important gaps '' ' , Secretary of State John Kerry says .
Iranian negotiator says ` ` negotiations ( are needed ) at higher levels '' Russian and Chinese foreign ministers are n't expected until Monday . Top Western diplomats rushed to Tehran earlier Friday amid rising pressure for talks . ` ` Some important gaps '' ' , Secretary of State John Kerry says .