People : At least 50,000 people are said to have fled from the fighting in Jonglei . Prime minister : Some of the people who fled have started to return to Pibor . Earlier , an official said roughly 500 reinforcements were being sent to Pibor . `` The situation is tense . The town had been under attack by fighters from a rival tribe .
People : At least 50,000 people are said to have fled from the fighting in Jonglei . Prime minister : Some of the people who fled have started to return to Pibor . Earlier , an official said roughly 500 reinforcements were being sent to Pibor . The town had been under attack by fighters from a rival tribe .