Residents of a provincial Sudanese city set government offices on fire and threw rocks at local officials on Sunday, accusing them of failing to protect them from a rebel attack the day before, witnesses said.
Insurgents from Sudan's Darfur region stormed Um Rawaba in North Kordofan state on Saturday, witnesses said. State media said late in the evening authorities had regained control of the city, located some 500 km (300 miles) from Khartoum.
On Sunday, 300 people gathered in the city centre to protest at a visit by North Kordofan Governor Mutassim Mirghani Zaki Uddi to inspect damage from the fighting in the state's second-largest city.
An angry crowd set several government buildings on fire and threw stones at the cars of the governor and his entourage, three witnesses told Reuters.
"We don't want you here - where were you yesterday?" the crowd chanted, according to witnesses. Uddi's motorcade left without any reports of injury or serious damage. There was no immediate police comment.
The attack marked a major thrust by a rebel alliance that is seeking to topple President Omar Hassan al-Bashir. Fighting had hitherto been limited mainly to Darfur and South Kordofan and Blue Nile states, which border South Sudan.
Local newspapers showed what they said were pictures taken during the rebel attack. Several burning buildings could be seen as well as the body of a person on the ground, according to the daily al-Intibaha.
In 2011, JEM teamed up with two other Darfuri groups and the Sudan People's Liberation Movement-North (SPLM-North) which took up arms in South Kordofan and Blue Nile around the time of South Sudan's secession, breaking up Africa's largest country.