The Sudanese army claims that dozens of RSF fighters were killed in the Nyala attack
Rapid Support forces accuse the army of killing 30 civilians in an attack on a busy Nyala livestock market.
Sudan's military says it has killed dozens of Rapid Support Force (RSF) fighters in a series of airstrikes in the southwestern city of Nyala, but the militant group says the army has killed civilians.
The targets of Friday's attack were the positions and command centers of RSF forces in Nyala, the capital of South Darfur state and the headquarters of the militant group's self-proclaimed administration, the military said in a statement.
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However, RSF said the army carried out a drone attack on a busy livestock market, killing 30 civilians, including 17 women and five children.
The group has not confirmed or denied whether separate military strikes killed some of its fighters and destroyed its command centers.
Separately, the human rights group Emergency Lawyers said in a post on X that a market was hit in Nyala on Friday and that the drone used was "affiliated" to the Sudanese military.
Al Jazeera's Al Migdad al-Rawheed, reporting from Sudan's capital Khartoum on Saturday, said the fighting between the army and RSF forces had "intensified".
In South Kordofan, a source in the Sudanese government told Al Jazeera that RSF forces carried out drone attacks on mining sites and that exchanges of fire intensified in many parts of Sudan in the past 24 hours.
The army has repeatedly targeted the Darfur region in western Sudan with drones in an attempt to retake territory controlled by the RSF, which holds most of the region.
This month, Sudan's army chief, Abdul Fattah al-Barhan, vowed to seize "every inch" of territory controlled by the RSF.
Sudan's civil war began in 2023 and has killed tens of thousands of people. The United Nations has described the situation in Sudan as the worst humanitarian crisis in the world.