A man is rushed to a South Sudan hospital following a deadly ambush.<br/> <br />Five United Nations peacekeepers and seven civilian staff were killed Tuesday by unidentified attackers in the restive eastern state of Jonglei.<br/> <br />The foreign ministry in Delhi said the peacekeepers were Indian nationals.<br/> <br />The soldiers were escorting a U.N. convoy in the remote state, rife with tribal violence and rebel militias.<br/> <br />South Sudan continues to struggle to enforce the rule of law since winning independence from Sudan in July 2011.<br/> <br />More than 150 people were killed in Jonglei last month in a fierce battle between government troops and insurgents.