The Sudanese armed forces broke Tuesday a paramilitary siege on the key southern city of Kadugli, army chief Abdel Fattah al-Burhan confirmed, marking the latest reversal of a paramilitary offensive through the Kordofan region.

South Kordofan state capital Kadugli, where the United Nations confirmed a famine last year, has been besieged for much of Sudan's nearly three-year war between the army and the paramilitary Rapid Support Forces.

"Congratulations to the people of Kadugli on the arrival of the armed forces," Burhan said in a brief interview aired by state television.

"The army will reach every part of Sudan," he added.

An RSF source confirmed the army advance and said the paramilitary would re-encircle the city.