Security increased at South Sudan UN camp
18 April 2014 Last updated at 22:48 BST
South Sudan's government has sent troops to provide security at a United Nations base where at least 48 people were killed in an attack.
Almost 5,000 civilians were sheltering at the camp in Bor when armed youths broke through the gates and opened fire.
Bor has been the scene of heavy fighting, having been taken and lost twice by rebels.
James Copnall reports.