The United Nations reimposed nuclear sanctions on Iran Sunday, putting new pressure on Tehran's ailing economy as tensions remain high in the wider Mideast over the Israel-Hamas war in the Gaza Strip.

Iranian President Masoud Pezeshkian and Foreign Minister Abbas Araghchi offered a last-ditch effort to try to halt the sanctions at the U.N. General Assembly met this week in New York. Efforts by China and Russia to stop the sanctions failed as well.

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