Sudanese officials say government forces have repelled a large rebel attack in South Kordufan state, an oil-producing region along the border with newly independent South Sudan.
The state's governor, Hamed Haroon, said government forces killed more than 100 rebels in the fighting Monday. Some soldiers were killed, though Haroon did not say how many.
Rebels with the Sudan People's Liberation Army consider themselves underrepresented in Sudan's government and frequently attack government troops from areas they control in the Nuba mountains.
Their attacks have hampered the Sudanese government's ability to security its border with South Sudan, which gained independence in July.
Army spokesman Col. Al-Sawarmi Khalid Saad told the Sudan Media Center that about 700 SPLA fighters attacked army positions in the Toladi area from three directions but were swiftly defeated by government troops.
Rebel spokesmen were not immediately available for comment.