Arizona-born Amir Mirza Hekmati, 28, had been accused of spying for the CIA and receiving training at US bases in Afghanistan and Iraq.
Iran's supreme court has dismissed the death sentence passed against an Iranian-American man accused of spying for the CIA, and called for judicial review of the case according to the semi-official Fars news agency.
Hekmati, a 28-year-old of Iranian descent born in the state of Arizona, was arrested in December and Iran's Intelligence Ministry accused him of receiving training at US bases in neighbouring Afghanistan and Iraq.
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