UN Secretary-General Antonio Guterres said Sudan was on the brink of a “full-scale civil war” as fierce clashes between rival generals continued unabated on Sunday in the capital, Khartoum. He warned on Saturday evening that the war between the Sudanese military and a powerful paramilitary force is likely to destabilize the entire region, according to Farhan Haq, deputy spokesperson for the secretary-general.

Sudan descended into chaos after months of tension between military chief Gen. Abdel-Fattah Burhan, and his rival Gen. Mohammed Hamdan Dagalo, commander of the paramilitary Rapid Support Forces, exploded into open fighting in mid-April.