Paramilitary force intensifies offensive in Kordofan region after seizing control of Darfur in October.

At least three people have been killed and nine others wounded, when the paramilitary Rapid Support Forces (RSF) launched a drone attack on a central Sudanese city, as fighting intensifies across the vast strategic region of Kordofan that could determine the war’s outcome.

The strike hit a square near a police station in the Tayba neighbourhood of el-Obeid on Saturday afternoon, military sources told Al Jazeera. Several of the wounded are in critical condition, they said.

The attack underscores the RSF’s expanding use of air power as it shifts its offensive from Darfur to the sprawling Kordofan region, home to critical oil infrastructure that has generated revenue for both Sudan and neighbouring South Sudan.

Military sources reported that the Sudanese Armed Forces (SAF) had earlier struck RSF positions in the town of Um Adara in South Kordofan, while RSF forces shelled the city of Um Rawaba in the north, causing civilian casualties.

An RSF drone also targeted army positions in Kosti city in White Nile state, in southeastern Sudan, destroying a military vehicle and injuring its crew, the sources added.

The three Kordofan states have witnessed fierce clashes in recent weeks, forcing tens of thousands to flee their homes and compounding what aid agencies describe as one of the world’s worst humanitarian emergencies.

The United Nations’ World Food Programme warned it will be forced to slash food rations by up to 70 percent for communities facing starvation starting in January due to critical funding shortages.

Ross Smith, the agency’s emergency preparedness director, said the cuts would affect those already “on the brink of famine” as well as vulnerable communities at risk of sliding into hunger.

The WFP said 20 million Sudanese are suffering from malnutrition, with six million facing famine-like conditions. Smith warned that funding could “collapse” by April, threatening the programme’s ability to continue operations.

Sudan’s war between the army and RSF has killed tens of thousands and displaced nearly 13 million people since fighting erupted in April 2023, according to international organisations.