More than 1,000 are being held in horrific conditions, facing disease, malnutrition and torture, as part of Cameroon's crackdown on Boko Haram, Amnesty International charges.
On the fifth anniversary of its independence from Khartoum, South Sudan is again descending into civil war, with last year's tentative peace deal breaking down.
Kenyan authorities detained three police officers for involvement in the murder of a human rights lawyer who disappeared after filing a complaint about police abuse.
Ethiopian security forces have killed more than 400 since November, and arrested tens of thousands more, in efforts to quash protests in the Oromia region.
Independent sources say the ominous border clash was sparked when Eritrean troops shot at military deserters and an Ethiopia-backed armed opposition group returned fire.
A court in Senegal convicted Chad's former dictator Hissène Habré of crimes against humanity committed during his rule, and sentenced him to life imprisonment.
The Niger Delta Avengers struck four pipelines in three days, halting production at facilities operated by Chevron, Shell, Agip and Nigeria's state oil company.
Somalia has made a $1 million donation to the drought-hit breakaway region of Somaliland, ahead of controversial talks between the two sides to clarify their future relations.
Nearly 150, including 11 children, have died this year in Nigeria's military detention barracks, mostly due to starvation and dehydration, Amnesty International reports.
A new militant organization, the Niger Delta Avengers, has claimed a string of attacks on oil infrastructure, and issued communiques broaching secession from Nigeria.
Amid a referendum portrayed by Khartoum as a step toward peace, regime-backed militias unleash a new scorched-earth campaign in Darfur—reviving calls for US intervention.
A force of Ethiopian troops crossed into South Sudan to launch a joint offensive with the Juba government against ethnic Murle militia fighters who staged a bloody cross-border raid.
