Iran's foreign ministry on Saturday rejected any new negotiations or changes to the participants of the country’s 2015 nuclear deal with world powers.
The claim came after French President Emmanuel Macron said any new talks should include Saudi Arabia.
"The nuclear accord is a multilateral international agreement ratified by U.N. Security Council Resolution 2231, which is non-negotiable and parties to it are clear and unchangeable," Iranian Foreign Ministry spokesman Saeed Khatibzadeh was quoted by state media as saying.
The 2015 agreement, formally known as the Joint Comprehensive Plan of Action, provided Tehran with sanctions relief in exchange for restrictions on its nuclear activity.
Tension between the US and Iran have hiked since 2018 after Trump withdrew from the nuclear deal between Tehran and world powers and reimposed crippling sanctions on Tehran.