DAKAR (Reuters) - Senegal President Macky Sall won re-election with 58 percent of votes in the Feb. 24 poll, according to provisional results announced by the National Vote Counting Commission on Thursday.

ALGIERS (Reuters) - Police in Algeria arrested several journalists at a protest in the capital on Thursday calling for the right to cover rarely seen anti-government demonstrations which began a week ago, according to witnesses and Reuters television footage.

FREETOWN (Reuters) - Jane Goodall visited a chimpanzee sanctuary in Sierra Leone on Thursday that has taken on the veteran primatologist's mission to protect the animals threatened by deforestation, disease and hunting.

LONDON, Feb 28 (Reuters) - A global cocoa surplus is expected in the 2018/19 season, Informa's Agribusiness intelligence said on Thursday, with record production driven by favourable weather in West Africa.

ABUJA (Reuters) - Nigeria's President Muhammadu Buhari comfortably won a second term at the helm of Africa's largest economy, election authorities said on Wednesday, but his main rival planned a fraud challenge after a vote marred by delays and violence.

HARARE (Reuters) - The United Nations on Thursday launched an international appeal for aid for Zimbabwe following a drought that it expects to affect around a third of the population as crop yields plummet.

GOMA, Democratic Republic of Congo (Reuters) - Armed assailants attacked an Ebola treatment centre in eastern Democratic Republic of Congo on Wednesday, setting off a fire and becoming embroiled in an extended gunbattle with security forces, health officials said.

GENEVA (Reuters) - At least 10,000 Nigerians returned to a flashpoint town on Wednesday after fleeing into Cameroon to escape repeated attacks over the past few months, a U.N. humanitarian report said.

GOMA, Democratic Republic of Congo (Reuters) - Armed assailants attacked an Ebola treatment centre in eastern Democratic Republic of Congo on Wednesday, setting off a fire and becoming embroiled in an extended gunbattle with security forces, health officials said.

KINSHASA (Reuters) - Former Democratic Republic of Congo President Joseph Kabila's anti-corruption czar withdrew his candidacy from next month's senate election due to what he said was widespread vote-buying.