The raids, coordinated with Spain and the E.U., are resulting in the arrest of thousands, many with proper documents, banishment to distant parts of the country, or even expulsion, rights groups say.

In a unique analysis, researchers put a price on protecting Africa’s wildlife: at least $1.2 billion each year.

The violence threatened to again force the suspension of health workers’ efforts to contain the virus, which may have killed more than 150 people since August.

In his first extensive interview since leaving the country, Mr. Gupta says, “I want to clear my name” but won’t yet return to testify.

Ethnic tension and competition for scarce resources have been blamed for deadly attacks in the area. Security has become a key issue ahead of presidential elections in February.

Mohammed Dewji, 43, chief executive of METL Group, was snatched a week ago outside a luxury hotel in Tanzania. His company said Saturday that he was safe.

Health officials expressed serious concern about the disease, which has a high risk of spreading to neighbors, but were optimistic it would be controlled.

The military said the strike, which followed attacks on Somali security forces and their American advisers, was the deadliest against the extremist group in nearly a year.

Episodes involving discriminatory behavior by the region’s growing Chinese work force have unsettled many Kenyans, particularly at a time when their government seeks closer ties with China.

In the capital of Rwanda, our columnist joins a family gathering at a lively night spot, and discusses the past, present and future of this evolving East African city.

The commissioner, Blake Fischer, drew ire after he sent a mass email about his hunting trip in Namibia. The email included photos of game he killed.

A Nigerian government minister said Hauwa Liman, 24, who worked for the International Committee of the Red Cross, was killed after failed attempts to secure her release from a faction of Boko Haram.

An organization on the coast of Kenya tries to persuade local residents to help return the trapped reptiles to the ocean, rather than sell their meat and shells for a living.

A Boko Haram faction has said that by Oct. 16 it will kill an aid worker abducted as part of an attack on a military installation in March.

A defender of apartheid, he also showed a moderate streak rarely found among hard-liners, predicting that the country would one day have a black president.

Snakes kill or cripple 500,000 people a year, but antivenins are costly and rare in poor countries. Now scientists are testing injectable nanoparticles that neutralize venom.

Having survived a savage beating after speaking out against President Yoweri Museveni of Uganda, the ragga singer Bobi Wine is intent on ousting him.

The bus left the road, rolled down a slope and crashed, ripping off the roof. A police official said the bus was not licensed to operate at night.

Two national parks in Uganda and Madagascar presented researchers with a natural experiment to understand how plants have adapted to appeal to animals that spread their seeds.

The first lady may have come into her own on her just-completed solo journey abroad, but she often reminded observers of the man back in the White House.