Around 600 Burundian refugees per day crossed into Tanzania in January.
Political change, separatist insurgencies and a possible genocide project a tough year for the continent.
The Imbonerakure played a key role in President Nkurunziza's controversial re-election.
President Nkurunziza is cracking down on expressions of dissent in Burundi.
The ICC has launched a preliminary examination of the violence that has killed over 400 people.
The U.N. has accused Rwanda of training Burundian rebels to topple Burundi's president.
More than 400 people have been killed in Burundi since April 2015.
More than 400 people have been killed in conflict in Burundi since April 2015.