"US has taken several Iranian scientists hostage—without charge or on spurious sanctions charges—& not releasing them; even when its OWN courts reject the absurd charges," Zarif said in a post on his Twitter account on Friday.
Amid the pandemic, the US administration has even refused medical furlough for innocent Iranians jailed in horrific facilities, he added.
"Release our men," the top Iranian diplomat told the US.
He also attached to his tweet an image of an interview published by the British daily Guardian quoting an Iranian scientist detained by the US Immigration and Customs Enforcement (ICE) as saying that the ICE’s handling of the coronavirus outbreak may kill him along with many other inmates.
The daily Guardian published an interview with Iranian materials science and engineering professor Sirous Asghari on Friday detailing the “inhumane” jail conditions at his ICE facility.