Clemence Bakatuseka, who works on behalf of victims of sexual violence, says police demanded a 'protection fee' to help her after she was attacked by armed men at her home last month.
Eight men and women, some of whom are thought to have been monitoring the human rights situation in Darfur, are said to have been detained by the security forces in Khartoum.
Farai Maguwu was charged with "publishing or communicating false information prejudicial to the state" after he reportedly told a diamond trade monitor about abuses carried out in Marange.
Birtukan Mideksa, head of the Unity for Democracy and Justice Party, was freed after serving 21 months of a life sentence.
Nearly 50 people were arrested when police broke up a meeting organized by a broad coalition of groups campaigning for political change in the country.
Up to six people, including two children, were reportedly killed in the capital Maputo on Wednesday during clashes between police and demonstrators.
Amnesty International calls on the government to ensure presidential election is held in an atmosphere where Rwandans can freely express their views.
Amnesty International has called for the release of four Angolan human rights activists unlawfully jailed in connection with an attack on the Togolese football team in Cabinda that left two people dead and several injured.
Politicians urged not to incite ethnic hatred or violence and for the security forces to protect the population from abuses ahead of this week's poll.
Pascal Kabungulu was killed five years ago by a group of armed men who broke into his house and shot him dead in front of his family.
Joseph Dunia Ruyenzi is one of hundreds of human rights activists in the country who face arrest, harassment, threats and even death over their work.
Farai Maguwu was detained for five weeks after he exposed human rights violations in the country's Marange diamond fields.
Days after the funeral of activist Floribert Chebeya Bahizire, Amnesty International warns that the work of activists and journalists in the country is becoming increasingly deadly.
Amnesty International has warned that Zimbabwe could be hit by a new wave of political violence, following a spate of attacks on human rights activists in the past week.
Journalist and human rights activist Faisal Elbagir, who was forced to flee Sudan last year, urges the United Nations to keep its Independent Expert in Sudan.
Amnesty International's annual assessment of the state of the world's human rights, details abuses in 159 countries and shows how power politics are worsening the situation.
Tiwonge Chimbalanga and Steven Monjeza were arrested in December two days after holding an engagement ceremony.
Four members of staff were also arrested during a late night raid by security forces on the offices of opposition daily Rai Al Shaab.
Couple arrested in December after holding an engagement ceremony face up to 14 years in prison.
Unity government urged to end all malicious prosecutions of people exercising their rights to freedom of expression after the acquittal of Roy Bennett, a critic of President Mugabe.