The ongoing military standoff between Sudan and South Sudan has forced thousands from their homes, fearing for their lives. This is according to a United Nations Human Rights report.

"According to the government of Sudan's Humanitarian Aid Commission and other reports received by the UN, the entire civilian population of Heglig town and neighboring villages have fled," the report, released on Sunday, said.

South Sudan's army said it had completed its withdrawal from Heglig, but condemned the north for bombing the area as the pullout was still under way.

Heglig is part of South Kordofan state, where ethnic rebels have been fighting for months. Sudan did not allow journalists or other observers into the Heglig area during the standoff with the South, meaning the situation has been difficult to verify.