GENEVA (AP) - The United States and five other world powers have begun high-stakes talks with Iran to demand a freeze of its nuclear activities.
A senior U.S. official says Washington is open to rare one-on-one talks with Iranian diplomats.
The EU's Javier Solana, who is formally heading the negotiations Thursday with chief Iranian negotiator Saeed Jalili, was upbeat before the start of the talks in an 18th century villa in the suburbs of Geneva.
But he declined to comment on the atmosphere of the talks and told reporters only, "It's a very nice day."
The U.S. official, who spoke on condition of anonymity because of the private nature of the talks, briefed reporters in Geneva. Such a move reflects Washington's determination to get results from the meeting.