Photogallery: South Sudan

A young displaced girl carries a bucket of water back to her makeshift shelter at a United Nations compound which has become home to thousands of people displaced by the recent fighting, in the Jebel area on the outskirts of Juba.

A young displaced boy rests on the wheel arch of a water truck while others fill containers from it, at a United Nations compound on the outskirts of Juba, the South Sudanese capital.

Yared, 2, is held by mother Madhn who fled from the town of Bor a few days ago, as she receives medicine for her child at a Medecins Sans Frontieres (MSF) medical tent at a United Nations compound.

Displaced people gather under a mosquito net tent as they flee from fighting between the South Sudanese army and rebels in Bor town, 180 km (112 miles) northwest from capital Juba December 30, 2013.

A soldier from South Sudan's army stands guard in Malakal in the Upper Nile State of South Sudan, Dec. 31, 2013.

The U.N.'s top humanitarian official in South Sudan, Toby Lanzer, assesses the situation at the U.N. compound where many displaced have sought shelter in Bentiu, Unity state, South Sudan, Dec. 24, 2013. (UNMISS)

A pirogue packed with passengers arrives at a dock after crossing a waterway near the town of Malakal, seen from an airplane over South Sudan, Dec. 30, 2013.

U.N.'s top humanitarian official in the country Toby Lanzer, left, makes a visit to assess the humanitarian situation at the U.N. compound where many displaced have sought shelter in Bentiu, in oil-rich Unity state, in South Sudan, Dec. 24, 2013.