(HRW) – Two armed groups competing for control over stretches of Colombia’s San Juan river are committing serious abuses against Afro-Colombian and indigenous Wounaan riverside communities, Human Rights Watch said today. The National Liberation Army (ELN) guerrillas and the paramilitary successor group Gaitanist Self-defenses of Colombia (AGC) have been engaged in conflict with one another in the Chocó province for years.