Sierra Leone's government has declared a cholera outbreak a national emergency after 176 deaths and 10,800 reported cases since January, health ministry sources said.
"A decision has been taken to declare cholera as a national emergency," a source at the health ministry said on Thursday on condition of anonymity.
Crowds in Uganda have given a hero's welcome to Stephen Kiprotich, the country's first Olympic gold medal winner in 40 years.
Kiprotich, a prison warden who won the men's marathon on Sunday, was then presented with a cheque for $80,000 (£51,000) by President Yoweri Museveni.
Thousands of Tunisians have protested in the capital, Tunis, against moves by the Islamist-led government which they fear will reduce women's rights.
The government has unveiled a draft constitution which refers to women as "complementary to men".
The London 2012 Olympics have ended with a spectacular musical closing ceremony and the official handover to the next host city, Rio de Janeiro.
Change could be about to hit Cuban radio. After five decades, the government has done away with a blacklist of musicians and singers that had seen dozens of artists banned from the nation's airwaves.The list was never officially published, but artists who abandoned the Communist-run island and spoke out against the 1959 revolution found themselves struck off radio playlists.