Jundallah, the Sunni separatist group in Iran, has claimed it kidnapped a scientist working for the country's nuclear programme.
The group is also threatening to reveal his secrets about Iran's nuclear ambitions, unless members of Jundallah are released from prison.
Al Jazeera's Dorsa Jabbari reports.
Content on this website is for general information purposes only.
Your comments are provided by your own free will and you take sole responsibility for any direct or indirect
liability. You hereby provide us with an irrevocable, unlimited, and global license for no consideration to
use, reuse, delete or publish comments, in accordance with Community
Rules & Guidelines and Terms and