Iran has reaffirmed that its missile program is non-negotiable, a stance that could complicate ongoing diplomatic efforts with the United States. Ali Shamkhani, an adviser to Iran’s supreme leader, made the declaration on Wednesday during an event marking the 47th anniversary of the Islamic revolution. His comments came after mediated talks between Iranian and US officials in Oman last week failed to produce a breakthrough. Tehran insists discussions should focus solely on nuclear issues, while Washington seeks to include Iran’s ballistic missile program and regional alliances.

US President Donald Trump has sent mixed messages about the negotiations, describing the first round as “very good” but also warning of possible military action if Iran does not meet US demands. Trump has also suggested deploying a second aircraft carrier toward Iran. Iranian President Masoud Pezeshkian reiterated that Iran’s nuclear program is peaceful and that the country will not yield to “excessive demands.”

Iranian officials, including Ali Larijani, have continued regional consultations, meeting Qatar’s emir to discuss the talks. Both sides remain in contact about a potential second round, though no date has been set.