The United States has demanded that the “brutal” leadership of Iran release all those arrested during recent anti-government protests, the BBC News reported on Thursday.
A White House statement said the Trump Administration was deeply concerned that Iran had imprisoned thousands for engaging in “peaceful protests”.
It is not known how many people have been arrested.
The official figure is about 1,000, but other sources in Iran suggest it could be much higher.
Iranian officials say the majority of those arrested have now been released, with only “instigators” facing trial.