The prosecutor of the International Criminal Court said Friday that he would seek arrest warrants for war crimes in Darfur including, for the first time, actions by Sudanese rebels. The prosecutor, Luis Moreno-Ocampo, said the warrants would involve attacks on African Union peacekeepers in September 2007, in which 12 were killed. Speaking in The Hague, the prosecutor did not disclose the names and number of suspects, but earlier he had said that two rebel factions carried out the attacks. The court previously issued arrest warrants for a former government minister, Ahmad Harun, and for Ali Kushayb, a leader of the government-backed janjaweed militia. In July, Mr. Moreno-Ocampo requested the arrest of the Sudanese president, Omar Hassan al-Bashir, on charges of genocide, war crimes and crimes against humanity, but the court is still reviewing the evidence and has not issued a warrant for him.