Some 60,000 people in the state are in urgent need of assistance , the United Nations says . They fled their homes last week to escape thousands of armed fighters from another tribe . A senior U.N. official is visiting a town attacked by the fighters to assess the situation . Ethnic tension flares as tribes fight over grazing rights and water rights .
Some 60,000 people in Jonglei state are in urgent need of help , the United Nations says . They fled their homes last week to escape thousands of armed men from another tribe . A senior U.N. official is visiting a town attacked by the fighters to assess the situation . Ethnic tension flares as tribes fight over grazing lands and water rights .