Iran and six world powers made little progress in overcoming significant disagreements in the most recent round of nuclear talks, including on uranium enrichment, Iranian and Western diplomats close to the negotiations said Friday.

Officials from Iran and the six countries had cautioned ahead of the talks in New York that a breakthrough was unlikely to end sanctions on Tehran, although they had hoped substantial progress could be made in narrowing disagreements.

A senior State Department official said gaps "are still serious" with just eight weeks to go before a Nov. 24 deadline.