TEHRAN -- Long-running efforts to revive the international deal to limit Iran's nuclear program are hanging in the balance after Russia's invasion of Ukraine threw up a new hitch.
International relations
Iran nuclear talks hang in balance after Russia invades Ukraine
Experts warn that time is running out to save the 2015 accord
The war in Ukraine has cast a new cloud over hopes of reviving the Iran nuclear deal. (Source photos by AFP/Jiji and AP)
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