The massacre began around 5 am on March 1, 2026 when unidentified armed youths crossed the state border from Mayom county to Abiemnom. The attack lasted around three hours and ended when the youths dispersed and retreated back to Mayom. Of the 169 killed, 79 were government soldiers and 90 were civilians. The executive director of Abiemnom County was also killed. During the attack over 1000 civilians sought refugee in the Abienmon UNMISS compound. Stephano Wieu De Mialek, the chief administrator of RAA, alleged that the attackers were members of the
Nuer White Army and supported by the
SPLA-IO. SPLA-IO denied these claims stating that “Our forces stationed in Kubri Jamus remain in their designated positions and have not conducted any military operation targeting civilian populations." RAA community leaders and former RAA officials claimed that the armed youth were associated and armed by the
SSPDF. According to the community leaders SSPDF had armed the youth with weapons seized from the retreating
Sudanese Armed Forces (SAF) after the fall of
Heglig across the border. ==Aftermath==