The United States Senate has passed a resolution calling on Iran to release a Flint man.
Amir Hekmati has sat in an Iranian prison cell for more than three years. The former U.S. marine denies the spying charges for which an Iranian court convicted him.
The lawmakers on Monday called on Iran to free Saeed Abedini, Amir Hekmati and Jason Rezaian, and cooperate with the U.S. government to locate and return former FBI agent Robert Levinson, who is believed to be missing in Iran.
Abedini, a Christian pastor from Idaho, has been in Iranian custody since September 2012 and is serving an eight-year sentence for undermining state security.
Hekmati, a dual U.S.-Iranian citizen born in Arizona, was arrested on spying charges in August 2011.
Rezaian, The Washington Post's bureau chief in Tehran, has been held since July 2014. Iranian authorities have not provided specific details about why he is being held.
Hekmati’s family and supporters are hoping increased pressure will lead to his release.