Bama camp shelters 24,000 refugees who fled Boko Harm attacks.
40 people were killed in Malakal earlier this year.
Authorities block social media access in an attempt to curb cheating.
Fighting broke out along border of rival nations.
According to an investigation by Amnesty International.
Somali al-Shabab militants rammed an explosive-laden car into the gates of an African Union base in central Somalia and stormed into the army camp, exchanging heavy gunfire on Thursday.
Two lawmakers dead in the assault claimed by Al-Shabab militants.
4 personnel killed, 16 injured in clashes in Ben Jawad, east of Sirte.
Assault comes days after Chadian peacekeepers slain in ambush.
More than 70 migrants rescued in second shipwreck within two days.
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