Sudanese government forces have blocked international peacekeepers accessing the site of an alleged attack that killed up to 10 civilians in the western Darfur region, the peacekeepers said. The African Union-United Nations mission in Darfur (UNAMID) said a team of peacekeepers went to investigate on Saturday after receiving reports of an attack on civilians in Sigili village, some 40km (25 miles) southeast of North Darfur's state capital El Fasher.