Researchers say their findings prove that Ebola mutated into several different strains and was reintroduced to Guinea multiple times.
The two men were seized in the desert city of Timbuktu in November 2011, weeks before secular and Islamist rebels took over Mali's north.
Nigerian President Muhammadu Buhari said it's time to put an end to the Boko Haram crisis once and for all.
Jihadist groups in North Africa need millions to finance their activities, so they have moved on from kidnapping to something much more lucrative: drug trafficking.
Some jihadist groups in West Africa are putting their hands on heavy weapons, including anti-aircraft missiles.
The country has witnessed increased violence amid the fallout of peace talks between government forces and the rebels.
A Tuareg-dominated rebel coalition says the Malian soldiers were taken captive in the town of Tesset.
Algerian troops ambushed and killed at least 22 militants allied to Islamic State as they held a meeting east of the capital on Tuesday in one of country's largest military operations in recent years, the defense ministry and a security source said.
Mali is currently reeling under a violent civil war that has pitted separatist and Islamist rebels against pro-government forces and militias.
The U.S. secretary of state traveled to Turkey, where NATO ministers also were to discuss instability in Syria and Iraq.
The latest Amnesty International report finds that the country's worsening situation has helped "people smugglers" step up their trade.
A newly formed group is terrifying locals, targeting foreign troops and proving jihadi rebel outfits in Mali.
The Save the Children group has claimed that nearly 40 migrants have died in the sea between Libya and Sicily.
There have been reports of skirmishes in Mali between rebel groups and U.N. peacekeeping forces despite ongoing peace talks.
If the trend continues, fatalities this year will soon exceed those for all of last year, the International Organization for Migration fears.
The Algeria-based group, led by a former al Qaeda commander, claimed responsibility for a suicide bombing outside a UN peacekeeping mission camp Friday.
Measles-related deaths could grow to 16,000 in West Africa because of disruptions to health care facilities caused by the Ebola outbreak.
By the time Ebola was declared an emergency in August last year, about 1,000 people had died from the virus.
The evacuation follows the infection of an American health-care worker who is now being treated at a U.S. hospital.
The attack came a day after an Islamist gunman killed five people in Mali's capital Bamako.
Eight people were also wounded in the attack where four gunmen opened fire using a machine gun and also threw a grenade.
In a speech before the Security Council, the Libyan ambassador said the world has not done enough to stop the spread of terrorism.