A former Iranian foreign minister who was key to the country's 2015 nuclear deal with world powers reportedly tendered his resignation Monday from the government of reformist President Masoud Pezeshkian,

The United Nations nuclear watchdog called on the US and Iran to begin talks, suggesting that US President Donald Trump holds the next move in trying to defuse tensions with the Islamic Republic over its atomic activities.

Iranian state media said that Iran’s “president acknowledges he shifted position on negotiating with the US to match [Supreme] Leader’s stance.”