A United Nations peacekeeper salutes to the coffins of five United Nations peacekeepers killed in Jonglei, at Juba airport April 10, 2013. Five United Nations peacekeepers and seven civilian staff were killed on Tuesday by unidentified attackers in the restive eastern state of Jonglei. REUTERS/Andreea Campeanu (SOUTH SUDAN - Tags: CIVIL UNREST TPX IMAGES OF THE DAY)