The United Nations  on Friday demanded the immediate release of three Aid Workers Abducted while providing humanitarian support at Rann, Kalabalge Local Government Area of Borno. Mr Edward Kallon, the UN Humanitarian Coordinator in Nigeria, made the cal during a courtesy call on Gov. Kashim Shettima in Maiduguri. The News Agency of Nigeria  recalls that Rann, a village of about 150km West of