A pre-dawn assault in South Sudan’s northern Ruweng Administrative Area that left at least 169 people dead is sharpening fears that the country’s fragile peace deal is slipping further out of reach. Authorities said the raid targeted Abiemnom County on Sunday and included the killing of senior local officials, while UN peacekeepers reported a sudden surge of civilians seeking protection according to BBC.

Ruweng’s information minister, James Monyluak Mijok, said the victims included 90 civilians children, women and elderly people alongside 79 members of regional forces, including police. He added that about 50 others were wounded, with many taken for treatment in the neighbouring Abyei Administrative Area.

Why this attack matters is not only the toll, but what it signals about the security environment in a country already on edge. The United Nations has repeatedly warned that South Sudan risks sliding back into wider conflict as the 2018 power-sharing arrangement between President Salva Kiir and long-time rival Riek Machar comes under mounting strain.

Monyluak described the raid as a “surprise” assault carried out by dozens of armed youth who entered the area before dawn, setting homes and markets on fire during fighting that he said lasted several hours. Local officials killed reportedly included the county commissioner and executive director.

Ruweng authorities alleged the attackers came from neighbouring Unity state and claimed links to the Sudan People’s Liberation Army in Opposition (SPLA-IO). The SPLA-IO denied involvement, accusing Unity state authorities of politicising the violence.

The UN Mission in South Sudan (UNMISS) said around 1,000 civilians began seeking protection near its base in the affected area, and that peacekeepers were providing emergency medical care to at least 23 wounded people. UNMISS called for an immediate end to hostilities and urged dialogue.

The attack also lands amid wider instability and humanitarian strain. Reporting linked to the same wave of violence noted that Médecins Sans Frontières (MSF) suspended services in parts of Jonglei state, citing missing staff and insecurity, underscoring how rapidly local violence can disrupt lifesaving aid.