Hawa Abdallah, a Sudanese woman who works for the joint United Nations and African Union Mission in Darfur (UNAMID), was released on July 13.
Mansoureh Behkish, an Iranian human rights activist, she was released on bail on 9 July 2011.
Dargham Mahdi al-Zaidi, a pro-reform activist aged around 30, was released on 3 July. He was apparently told that he must stop taking part in anti-government protests.
The Chechen authorities must end their intimidation and harassment of human rights defenders, Amnesty International said today, after recent threats made to activists.