UN 'outrage' at Sudan bombing
12 May 2012 Last updated at 15:14 BST
The United Nations human rights chief Navi Pillay has said the bombing of territory in South Sudan despite a UN resolution demanding an end to hostilities is an outrage.
She also called for a human rights monitoring mechanism in the border regions.
Aid agencies have warned of a deteriorating situation along the border and an increase in the number of people fleeing the bombings.
Mike Wooldridge reports.