Sri Lanka, April 12 -- Iran's foreign ministry said no one had held any expectation that talks with the United States could have reached an agreement within one session after the marathon negotiations in Islamabad stalled on Sunday (Apr 12).

"Naturally, from the beginning we should not have expected to reach an agreement in a single session. No one had such an expectation," ministry spokesperson Esmaeil Baqaei said, according to state broadcaster IRIB.

The ministry added that negotiations with the US fell apart over a "gap between our opinions over two or three important issues".

"Ultimately the talks didn't result in an agreement," spokesman Esmaeil Baghaei told state TV without detailing what those issues were.

On some topics, Bagha...