![Siamak Namazi (jailed in Iran) and father Baquer. courtesy: Paul Peachey](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/BDWWQSYTEBHJPFQMAYYQGEWWJ4.jpg?smart=true&auth=705262363f02cc8238ac2eaa95e86361ddb2c2c969a75e087a0ef91460b0b8e4&width=400&height=225)
Iranian-American businessman Siamak Namazi, right, and his father Baquer, were convicted of 'collaboration with a hostile government'. Family handout
Iranian-American businessman Siamak Namazi, right, and his father Baquer, were convicted of 'collaboration with a hostile government'. Family handout
Iran nuclear deal unlikely while Tehran holds US citizens, says special envoy
Talks are continuing in Vienna as all sides work to come to an agreement