President Michael Sata was being treated in the U.K. for an undisclosed illness.
Athlete sentenced to five years in jail for killing his girlfriend.
Gunfire, explosions heard in capital amid tension between militias.
Seeks help to fight Islamist militants in the north of the country.
Kenya's president faces charges concerning his role in violence that followed the 2007 elections.
One of the single deadliest days since the disease appeared in the West African country.
A freelancer working for NBC News in Liberia is to be flown home to the U.S. after contracting the virus.
Children in Guinea, Liberia and Sierra Leone who have lost parents to Ebola being avoided, group says.
Doctors Without Borders warns some measures are having a "chilling effect" on its work.
Talks occurring two weeks after announcement of a truce.
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