Khartoum, April 15 (UNI) At least six civilians were killed and 61 others injured in clashes between the Sudanese Armed Forces and the paramilitary Rapid Support Forces in El Fasher, the capital city of North Darfur State, the Sudanese Doctors'' Union said. The injured were still arriving at the hospital despite a shortage of equipment and blood donors, the non-governmental union said in a statement.