Rebels in Sudan's Darfur region said on Sunday they had shelled a state capital, in a rare attack on the government stronghold where international peacekeepers are also based. The government did not immediately comment on the report and the claim could not be immediately independently verified. War has ravaged Darfur since rebels took up arms in 2003, complaining the central government had neglected the region. The United States and the International Criminal Court accuse Sudan's government of genocide, crimes against humanity and war crimes in Darfur.