South Sudanese soldiers attacked border town of Pajok forcing more than 3,000 people to flee to neighboring Uganda, according to reports by local human rights activists.
Pajok, home to some 50,000 people have been attacked three times, according to Ugandan intelligence. Men, women and children were shot indiscriminately by the SPLA forces.
As fighting continues in the poor East African nation, forces loyal to former Vice President Reik Machar reported freeing hundreds of prisoners from a southern border city, Kajo-Kej.
Kiir administration denied the reports saying the rebels raided the detention center and freed only those they say were prisoners of war.
South Sudan gained independence from the Arab dominant north but slid into civil war sparked by the rivalry between President Salva Kiir and Riek Machar.
The UN says famine and genocide are roiling the troubled nation. Millions of people are displaced, 40% of the South Sudanese population (4.9 million people) needed food urgently, and at least 100,000, according to the UN, were in imminent danger of death by starvation.