The daughter of a German-Iranian US citizen who has been sentenced to death in Iran has called on Washington and Berlin to “take action” and save her father.

Jamshid Sharmahd, a 68-year-old software developer and California resident, was allegedly abducted during a visit to the United Arab Emirates in 2020 and forcibly taken to Iran.

In April, the Iranian judiciary sentenced him to death on charges of "spreading corruption on Earth," a verdict upheld by Iran's Supreme Court.

His family vehemently denies the allegations, and Amnesty International has condemned the trial as a sham.

At the end of last week, German officials disclosed that Foreign Minister Annalena Baerbock had held discussions about Germans detained in Iran with her Tehran counterpart, Hossein Amir-Abdollahian.

On Sunday, Jamshid’s daughter Gazelle Sharmahd responded, tweeting: “I have requested an input from the German Government regarding what was discussed about the hostages in Iran, in particular about my father Jamshid Sharmahd.”

In remarks targeted at US President Joe Biden, she said: “What are you doing for the US hostages after you handed the Islamic regime $6 billion, and still couldn’t save all US nationals like my dad. We are still waiting for you to take action. Action that won’t further threaten my dad‘s life and won’t further empower his kidnappers.”

She earlier expressed frustration with the passing of responsibility between Germany and the US, stating, "The issue is tossed back and forth, with each side claiming 'not my citizen,' 'not my jurisdiction.' And we're not getting through to them."