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South Sudanese People Liberation Army (SPLA) soldier patrols in Malakal on January 21, 2014. Pressure mounted on South Sudan's warring parties Tuesday to reach a ceasefire to end weeks of bitter fighting and atrocities on both sides that have devastated the young nation.Thousands have been killed and half a million civilians forced to flee the fighting between troops loyal to President Salva Kiir and rebels allied to his sacked deputy Riek Machar. AFP PHOTO / HARRISON  NGETHI        (Photo credit should read HARRISON NGETHI/AFP/Getty Images)
South Sudanese People Liberation Army (SPLA) soldier patrols in Malakal on January 21, 2014. Pressure mounted on South Sudan's warring parties Tuesday to reach a ceasefire to end weeks of bitter fighting and atrocities on both sides that have devastated the young nation.Thousands have been killed and half a million civilians forced to flee the fighting between troops loyal to President Salva Kiir and rebels allied to his sacked deputy Riek Machar. AFP PHOTO / HARRISON  NGETHI        (Photo credit should read HARRISON NGETHI/AFP/Getty Images)

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U.N. mission: fighting, gunfire resume in South Sudan

A U-N Peacekeeper has been killed, as violence flares once again in South Sudan. CNN's David McKenzie brings you more on the renewed fighting.

U.N. mission: fighting, gunfire resume in South Sudan

A U-N Peacekeeper has been killed, as violence flares once again in South Sudan. CNN's David McKenzie brings you more on the renewed fighting.