Fariba Adelkhah and Roland Marchal of the Sciences Po University in Paris detained since June 2019 on espionage charges

Arrested in April 2016 over espionage accusations by the regime, Nazanin Zaghari-Ratcliffe has undergone unspecified psychiatric treatment while incarcerated

One of those sentenced in the southern Khuzestan province, former sugar mill worker Esmail Bakhshi, said he was beaten and tortured by authorities

Roland Marchal was arrested in June, alongside a Franco-Iranian colleague who was herself accused of espionage

The four were previously charged with spreading 'corruption on earth,' which can lead to capital punishment; head of environment dept. calls for information on activists' fate

Recent years have seen a string of detentions of foreigners, most of them dual nationals from Western countries

Verdict against man accused of working for US intelligence service is expected to be debated in supreme court; three others sentenced to 10 years in jail each

Hossein Fereydoun, ex-top aide to the Iranian leader, was previously convicted of receiving bribes and had been a key figure in negotiations of the 2015 nuclear deal

Iranian courts also hand down prison sentences to two others accused of spying for America and a third man charged with spying for the UK

Saeed Malekpour had been jailed since 2008 for 'insulting the sanctity of Islam'; his sister says 'nightmare is finally over'