KHARTOUM -- At least 10 African Union (AU) troops have been killed and 50 reported missing from their base in Sudan's western Darfur region, in the bloodiest attack on the peacekeeping force, the AU said Sunday. "At least 10 soldiers were killed, seven wounded, and dozens are missing," African Union Mission in Sudan (AMIS) spokesman Noureddine Mezni said of the attack Saturday night on Haskanita base in southern Darfur. An AU statement said 50 personnel were missing after a "sustained attack by a large-and-organized group of heavily-armed men," who broke into the camp with 30 vehicles, forcing AU troops to...