Amnesty International is calling on the Zimbabwean government to release an activist who is being detained after he exposed human rights violations in the country’s Marange diamond fields.

The Zimbabwean government is being asked to release an activist detained after exposing human rights violations in the country’s Marange diamond fields.

State-sponsored violence and human rights abuses are still taking place in the diamond fields of eastern Zimbabwe said campaign group Global Witness yesterday.

The Zimbabwe authorities must stop harassing political opponents and government critics, Amnesty International said yesterday, following the acquittal of a critic of President Robert Mugabe accused of plotting to overthrow him.