'Our people in Iraq hold the most important key to the liberation of our prisoners,' prisoner committee chief says of Elizabeth Tsurkov

Elizabeth Tsurkov may have interviewed her Iraqi abductors in Baghdad for her research, Arab sources claim

London daily Asharq Al-Awsat says Islamic Republic looking to swap Elizabeth Tsurkov, possibly for prisoner Israel says is Revolutionary Guard operative

Spokesman Bassem al-Awadi says there will be no official statement about disappearance of Elizabeth Tsurkov until government 'completes its official investigation'