The UK, France and Germany have called on Iran not to escalate tensions and to pursue negotiations after UN sanctions were reinstated on Saturday. The three countries said they had "no choice" but to bring back the sweeping measures against Tehran "as a last resort" over its "continued nuclear escalation" and lack of cooperation.

Iran’s clerical rulers face one of their gravest crises since the 1979 Islamic Revolution, caught between growing discontent at home and a stalled nuclear deal that together have left the country more isolated and divided.

Iran’s President Masoud Pezeshkian speaks to NBC Nightly News anchor Tom Llamas, in the midst of his high-stakes meetings at the UN. He spoke about the recent U.S. strikes against Iran’s nuclear facilities,

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Iran has not formally acknowledged the test last week, carried out at a circular pad that has hosted other major launches by the country’s civilian space program.

Israeli authorities have arrested an American-Israeli dual citizen on suspicion of spying for Iran, accusing him of sharing information on public figures and sending videos and pictures of locations across the country to his handlers.

The United Nations reimposed sanctions on Iran early Sunday over its nuclear program, further squeezing the Islamic Republic as its people increasingly find themselves priced out of the food they need to survive and worried about their futures.

The sanctions will again freeze Iranian assets abroad, halt arms deals with Tehran, and penalize any development of Iran’s ballistic missile programme, among other measures. It came via a mechanism known as “snapback”, included in Iran’s 2015 nuclear deal with world powers, and comes as Iran’s economy already is reeling.