Iran's supreme leader said that the first round of talks with the United States went well, in what is his first public comment on the negotiations, Iran state television reported.
The comments by Supreme Leader Ayatollah Ali Khamenei represented his endorsement of the talks so far.
"We are neither radically optimistic about the talks nor radically pessimistic about the talks," the 85-year-old Khamenei said. However, he said the talks had been implemented well in the first steps and that Iran remained pessimistic about America.