Experts from the United Nations (UN) say crimes such as killings, rapes, and abductions continue in South Sudan despite a peace deal reached between the government and rebels.

A panel of experts reported to the UN Security Council (UNSC) on Wednesday that both sides to the South Sudan conflict were violating a ceasefire agreement reached in August.

The UN experts cited “numerous credible reports” of “killings, rapes, displacements, burning of villages, and abductions of women and children,” with more than 50 cases of rape having been reported for the month of October alone.

In their report, the experts told the UNSC that both government forces and rebels were “actively expanding their stockpiles of arms and ammunition,” in clear violation of the deal that was reached on August 26 in neighboring Ethiopia.

They also warned that the Unity and Upper Nile states are at risk of being exposed to an escalation of violence as the rainy season comes to an end.

The panel added that the humanitarian crisis in the African country was worsening with some 3.9 million people currently being threatened with famine.

Last month, the UN’s Food and Agriculture Organization (FAO), the UN children’s fund (UNICEF) and the World Food Program (WFP) warned that at least 30,000 South Sudanese people are living in extreme conditions, facing starvation and death.

South Sudan has been witnessing deadly violence since December 2013, when fighting broke out between soldiers loyal to South Sudan’s President Salva Kiir and defectors led by former Vice President Riek Machar. The fighting has killed tens of thousands of people and displaced over two million others.

A recent report by the African Union (AU) has pointed to acts of torture, cannibalism, and other acts of “extreme cruelty” committed by both sides in the country.