US Secretary of State John Kerry has met Iran's foreign minister on the sidelines of a security conference in Germany ahead of the next round of negotiations on Tehran's nuclear programme.
State Department spokeswoman Jen Psaki said Kerry met with Mohammad Javad Zarif in Munich this morning.
Details of the talks weren't immediately available.
Six world powers and Iran reached a first-stage agreement in November that curbs some Iranian nuclear activities in return for a partial easing of sanctions choking the country's economy.
Implemented January 20, that accord will be in effect for six months while further negotiations on a permanent agreement are held.
The next round of talks between the two sides will take place in Vienna on February 18.
