The Red Cross has suspended operations in the central Afghan province of Ghazni after an armed group kidnapped five local staff members, the international aid organization said Thursday. The Afghans were abducted Tuesday as they were traveling on a road in the province, where there have been frequent kidnappings and murders on its highways. A statement from the International Committee of the Red Cross in Afghanistan said the organization was working to secure the release of its staff members. It said it had halted operations in Ghazni and was reviewing security elsewhere in Afghanistan. But for now, it said, activities in the rest of the country are continuing.