KHARTOUM (AFP) - Authorities in Sudan’s troubled Darfur region have imposed a curfew and placed two districts under military rule after a month of unrest, official media said on Thursday. The crackdown in the country’s far west follows an attack on Tuesday against the top official of Kutum town, northwest of the North Darfur state capital El Fasher. Osman Yousif Kibir, the state governor, assigned Brigadier Mohammed Kamal Nour “to assume executive and administrative supervision in Kutum and Al-Waha” districts, the state SUNA news agency reported. Violence broke out in early August in Kutum when Abdelrahman Mohammed Eissa, the head of Al-Waha district, was shot dead during a carjacking attempt.