The United States and Iran are set to hold high-level, bilateral negotiations on Iran's nuclear program on Thursday in Geneva.
In a statement, the U.S. State Department said Deputy Secretary of State William Burns will head the American delegation. The chief U.S. nuclear negotiator, Under Secretary of State Wendy Sherman, will also attend.
The talks come after Iran and six world powers failed to meet a deadline last month on a comprehensive nuclear deal. The so-called P5+1 - which includes the United States, Britain, China, France, Germany and Russia - agreed with Iran to extend the deadline until November 24.
A temporary agreement reached by the two sides last November eased sanctions against Iran, which in turn agreed to curb its uranium enrichment program.
Iran has rejected accusations that it is trying to develop nuclear weapons, saying that its nuclear program is solely for peaceful purposes.