KIGALI, Rwanda — One of Rwanda’s most wanted fugitives in the country’s genocide died 20 years ago, the international tribunal overseeing justice efforts announced Friday, less than a week after another high-profile fugitive was arrested in France.

Confirmation of the death of former Rwandan defense minister Augustin Bizimana came when a DNA test on remains in a grave in Pointe Noire, Republic of Congo, positively identified him, the International Residual Mechanism for Criminal Tribunals said. It is not yet known how he died.

Rwandan authorities say Bizimana was a key player in the 1994 genocide in which more than 800,000 Tutsi and Hutus who tried to protect them were killed.

The identification “is the result of an exhaustive investigation by the Office of the Prosecutor combining advanced technology with extensive field operations, and involved exceptional cooperation with partner authorities in Rwanda, Congo Brazzaville, the Netherlands and the United States,” î the United Nations mechanism said.