TEHRAN (VINnews) — Iran is prepared to discuss compromises to reach a nuclear deal with the United States if Washington is willing to negotiate on sanctions, Iran’s deputy foreign minister Majid Takht-Ravanchi told the BBC. He said the ball is “in America’s court” to prove it wants a deal and highlighted Tehran’s offer to dilute its 60% enriched uranium as a sign of flexibility.

U.S. officials, including Secretary of State Marco Rubio, have said Iran is the primary obstacle to progress. Indirect talks resumed earlier this month in Oman, with a second round scheduled in Geneva. Takht-Ravanchi described the initial discussions as “more or less positive” but cautioned it was too early to judge.

The Iranian official also reiterated Tehran’s refusal to discuss its ballistic missile program, criticized U.S. messages supporting regime change, and warned that further American military buildup in the region could trigger a strong response, according to the BBC.