NNA - South Sudan's army fought on Sunday with the "White Army" ethnic militia, accusing rebels of mobilising the force despite its offer of a truce to end the conflict in the new country.



Two weeks of fighting have left at least 1,000 dead and split the oil-producing country barely two years after it won independence from Sudan. It has also raised fears of an all-out civil war between the main Dinka and Nuer ethnic groups which could destabilise fragile East Africa.



The feared White Army - made up largely of Nuer youths who dust their bodies with ash - clashed with government troops near the town of Bor five days after rebels were driven out, army spokesman Philip Aguer said.



A rebel spokesman denied the White Army was controlled by Riek Machar, a Nuer, the former vice president whose followers oppose President Salva Kiir, a Dinka.



The army used helicopter gunships against the White Army advance near Bor, Aguer said.



"They then dispersed and returned back," the Sudan People's Liberation Army spokesman said by phone from South Sudan's capital, Juba, 190 km (120 miles) south of Bor by road.


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