Amnesty International has urged the conflicting parties in Sudan to put an end to their war crimes.
It claims that purposeful and indiscriminate attacks are killing a lot of civilians.
The majority of those who were questioned by the rights organization had fled from the Darfur region to camps in Chad.
Numerous children and women, some as young as 12, have allegedly been the victims of sexual violence, including rape.
According to Amnesty International, the majority of the crimes were committed by members of the Rapid Support Forces and affiliated Arab militias.
Acute food shortages are anticipated to affect more than 20 million people in Sudan, or more than 40% of the population, according to UN agencies and NGOs.