The UN peacekeeping mission in South Sudan in its first report on human rights abuses during the conflict said the report on the progress of human rights investigations offers a "snapshot" of the violence perpetrated mainly by forces loyal to President Salva Kiir, who is an ethnic Dinka, and rebel soldiers loyal to dismissed former vice president Riek Machar, who is an ethnic Nuer.
Since incidents are still being investigated, the mission's human rights experts said "it is premature to judge whether or not sexual violence was used as a weapon of war."
The interim report focuses on alleged rights abuses in the four states which have seen the heaviest fighting Central Equatoria where the violence began in the capital Juba on December 15, and Jonglei and oil-rich Unity and Upper Nile states where it quickly spread in the following days.
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While the trigger for the violence remains in dispute, the report said it has led to "a major security, human rights, and humanitarian catastrophe," and increased ethnic polarisation in the world's newest nation.
The report doesn't cover events in February but it said the situation on the ground is still volatile, and violations of human rights are continuing, especially in areas where there is continued fighting.