A new discovery could explain why obese people are more likely to develop cancer, scientists say.

An outbreak of Ebola in the eastern region of the Democratic Republic of Congo has killed more than 200 people.

Police in Ethiopia say they have discovered a mass grave with 200 bodies near the border between the Somali and Oromia regions of the country.

Schoolchildren kidnapped from a boarding school in Cameroon's North-West region are meeting the regional governor after being freed.