The chief prosecutor at the ICC has appealed its decision to drop charges against Rwandan rebel leader Callixte Mbarushimana and order his release.

Rwanda on Tuesday applauded the arrest of a Hutu rebel leader wanted for war crimes in the Democratic Republic of Congo (DRC).

German police have arrested Rwandan Callixte Mbarushimana, suspected of involvement in the killing of 32 fellow UN staff during the 1994 genocide.