From NBC's Andrea Mitchell
An official at the Vienna talks says it is not clear yet whether Iran will agree to proceed with the International Atomic Energy Agency's proposal to ship their low-grade enriched uranium to Russia for reprocessing.
Iranian officials met with the U.S and other western diplomats today in Vienna -- shortly after Iranian television declared that Iran would not agree to deal with France because of past disputes with France.
France, in recent weeks, has been taking a harder line on the Iran talks than the other U.S. allies.
Today's meetings lasted about two hours and 45 minutes.
They are due to resume at 10:00 am tomorrow -- to go into greater depth and see if they can reach an implementation agreement on what was proposed in Geneva.