Who are the Americans held by Iran?
Here's a look at the four US citizens — Siamak Namazi, Baquer Namazi, Morad Tahbaz and Emad Shargi — whose fates could be decided in Vienna.
As negotiators in Vienna work to revive the landmark nuclear agreement, the US and Iran are also holding indirect discussions over the possible release of several Americans held by the Islamic Republic.
The Biden administration has stressed that the nuclear deal and prisoner issue are separate, but in January, US Special Envoy for Iran Robert Malley told Reuters it is “hard for us to imagine” re-entering into a nuclear agreement if the four Americans were still held by Iran.
