The United Nations reinstated an arms embargo and other sanctions on Iran on Saturday following a process triggered by key European powers that Tehran has warned will be met with a harsh response. Britain,

United Nations sanctions on Iran over its nuclear program are reimposed after a last-minute diplomatic push fails.

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.

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.

Iranian President Masoud Pezeshkian took the stage at the U_N_ to blast Israeli and U_S_ attacks in June as inflicting “a grievous blow upon international trust and the very prospect of peace in the region.

The U.N. Security Council on Friday rejected a last-ditch effort to delay reimposing sanctions on Iran over its nuclear program, a decision that the country's president immediately called “unfair, unjust and illegal.

Iran has likely carried out an undeclared missile test at its Imam Khomeini Spaceport, according to satellite photos analyzed by The Associated Press.