Egyptian riot police take position as a curfew is imposed in the southern Egyptian town of Nagaa Hamady, in Qena, 700 km (435 miles) south of Cairo, January 8, 2010. Separate protests by Muslim and Christian groups broke out in southern Egypt on Friday after six Coptic Christians and a Muslim policeman were killed in a drive-by shooting on Wednesday, security sources said. REUTERS/Asmaa Waguih (EGYPT - Tags: CIVIL UNREST MILITARY RELIGION)