Ex-BBC journalist arrested in Iran
Two weeks ago, we learned that a former colleague had been arrested in Iran. Roxana Saberi, an American citizen, whose father is Iranian, has reported from Tehran for the BBC as well as the US public broadcaster NPR and ABC. She was detained at the end of January - but there is much that remains unclear about the circumstances of Roxana's arrest.
Roxana, 31, has lived in Iran for the past six years. Before her arrest she was studying for a master's degree in Iranian studies and international relations, and was writing a book about Iran. Last night the BBC joined other international broadcasters in calling for the Iranian authorities to detail the specific charges against Roxana Saberi if no charges are filed, we believe she should be released and given permission to return to the United States.
Roxana has many friends and colleagues around the world - all of us are deeply concerned about her well-being.
Jon Williams is the BBC World News Editor.