Iranian-American Baquer Namazi (left) and his son, Siamak Namazi (right), were sentenced to 10 years in prison for allegedly spying and cooperating with the US government
ranian authorities have sentenced a dual Iranian-American national and his elderly father to 10 years in prison for allegedly spying for the United States, the Islamic republic's state media reported on Tuesday.
Siamak Namazi, a businessman in his mid-40s with dual US-Iranian citizenship, was detained by Iran's Islamic Revolutionary Guard Corps in October 2015 during a visit to relatives in the capital of Tehran.
This past February, the IRGC arrested his 80-year-old father, Baquer Namazi, a former Iranian provincial governor and former UNICEF official who also has dual citizenship.
Both men were sentenced to 10 years in prison for spying and cooperating with the US government, said Tehran prosecutor Abbas Jafari Dolatabadi, according to the Fars news website, without specifying when exactly the sentences had been handed down.
The US State Department's deputy spokesman, Mark Toner, said the father and son had been 'unjustly detained' in Iran, and called for their immediate release.
The sentences were the latest against dual nationals directed by hardliners who are powerful in Iran's judiciary and security forces, in the aftermath of Iran's historic nuclear deal with the United States and other world powers last year.
Washington and Tehran have not had formal diplomatic relations since the 1979 revolution where the United States-backed Pahlavi dynasty under Mohammad Reza Shah Pahlavi was overthrown.
Babak Namazi, Siamak's brother and Baquer's son, called the sentences unjust.
'My father has been handed practically a death sentence,' Babak Namazi said in a statement.
Baquer Namazi has a serious heart condition and other medical issues requiring special medication, his wife wrote on Facebook in February. On Tuesday, UNICEF called for his release on 'humanitarian grounds.'
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The US State Department's deputy spokesman, Mark Toner, said the father and son (pictured in this undated photo) had been 'unjustly detained,' and called for their immediate release
'We join recent calls by international organizations and UN human rights experts for the immediate release of all US citizens unjustly detained in Iran, including Siamak and Baquer Namazi, so that they can return to their families,' said a State Department spokesman, Mark Toner.
UNICEF, the UN children's agency, expressed 'deep sadness and personal concern' over the sentence of Baquer Namazi.
'The entire UNICEF family are deeply concerned for his health and well-being,' UNICEF said.
'Baquer has been a humanitarian all his life. We appeal for his release on humanitarian grounds.'
The Mizan news agency report said Nizar Zakka, a US permanent resident from Lebanon, also received a 10-year prison sentence.
His supporters had earlier told The Associated Press about the sentence, though the Mizan report was the first official Iranian confirmation of it.
It said two others had been convicted as well, without naming them or identifying their nationalities.
Later Tuesday, the semi-official Fars news agency quoted Tehran prosecutor Abbas Jafari Dolatabadi as saying three Iranians were sentenced to 10-years imprisonment for 'espionage and cooperating with the US government.'
He named them as Farhad Abdesaleh, Kamran Ghaderi and Alireza Omidvar, without elaborating.
It was unclear if they had lawyers or if they were among the two previously mentioned by Mizan.
The Namazi family fled after the 1979 Islamic Revolution, but appears to have kept business ties in Iran, and the younger Namazi traveled back several times.
He also wrote several articles calling for improved ties between Iran and the US, and urging Iranian-Americans to act as a bridge between the rival governments.