New Delhi, June 27 -- Congo said Friday it has filed a case against Rwanda at the International Court of Justice, accusing its neighbor of bearing legal responsibility for more than three decades of violence that has devastated eastern Congo.

Congo accused Rwanda of breaching international conventions on genocide, racial discrimination, discrimination against women and torture. It said civilians in the east have suffered massacres, extrajudicial killings, torture, sexual violence, forced displacement and ethnic and gender-based discrimination since the 1990s.

Mineral-rich eastern Congo has been battered by decades of conflict as government forces and allied militias fight more than 100 armed groups, the most potent of them the Rwandan-b...