"President Ouattara's expressed support for impartial justice rings hollow without more concrete action to bring justice for victims of crimes committed by pro-government forces, " said HRW's Param-Preet Singh.
The U.N. said the Taliban and other insurgents were responsible for 81 percent of the civilian deaths and injuries last year, while 8 percent were attributed to pro-government forces.
As record numbers of Syrian refugees have poured into Turkey in recent days, fleeing attacks from pro-government forces ahead of Tuesday's United Nations-backed cease-fire deadline, the spectre of sectarian tensions also has stoked fears that this border city could see a replay of the violence that left hundreds dead in the region in the aftermath of a 1980 military coup.