It is reported by RIA Novosti.

“Under the JCPOA, we have made some substantive progress on a significant number of issues that we believe would be important to bring back into the deal.

But there is still a lot to be done.

We don't have an agreement yet.

And it is possible that we may not achieve it, ”said Thomas-Greenfield.

If diplomacy fails, she said, they will continue to work closely with other representatives of the international community to increase pressure on Iran.

Earlier, US Secretary of State Anthony Blinken said during a hearing in the US House of Representatives that maximum pressure on Iran did not help stop the country's nuclear program.