Canines with a nose for detection have led to hundreds of arrests and the disruption of smuggling routes.Read more
A reminder of Friday's proverb:
It is the tasty soup that draws the table closer."
And we leave you with this picture of a man carrying his dog through flood waters in Luanda, Angola. It's from our selection of the best pictures from this week.
BBC Sport Africa
Athletics Kenya President Jackson Tuwei says the increasing number of suspensions of Kenyan athletes means that the anti-doping systems are working.
His comments came a day after an athlete in the west of the country evaded anti-doping officers who had arrived for a testing exercise at his home.
He added that all cheats would be exposed saying that "there is nowhere to escape".
Kenya is currently rated as the country most likely to dope by the world athletics body the IAAF.
In the last seven days, two top athletes have been suspended for failing to be available for drugs tests. In addition, at least 40 athletes are currently serving sanctions for doping violations.
Some of the high-profile athletes serving four-year bans are Olympic marathon champion Jemima Sumgong and three-time world champion in the 1500m Asbel Kiprop.
Athletics Kenya says it will push for more funding for the local anti-doping body and campaign for stronger anti-doping laws aimed at introducing criminal penalties for those athletes found guilty of doping.
Africa editor, BBC World Service
Police in Kenya say they have arrested a member of parliament, Babu Owino, in connection with the shooting of a DJ at a nightclub in the capital, Nairobi.
Footage appearing to show the incident has been widely shared on social media.
In a statement on his Facebook page, Mr Owino said there was an exchange of gunfire while he was surrounded by a large group of aggressive individuals.
He is a well-known opposition MP, representing the Orange Democratic Movement.
The DJ's condition is not clear.
BBC World Service
Security officials in Burkina Faso say five soldiers were killed when their vehicle hit an explosive device in the north of the country.
At least two others were wounded in the attack in Soum province.
The incident is being blamed on suspected jihadists who have intensified activity across the Sahel in recent months.
Malawi army officers deny beating up a transgender woman because of her sexual identity, army officials have said according to AFP news agency.
A video of the beating has been widely shared on social media.
"The truth is that the individual was beaten because they stole a car belonging to an army officer and not because they are transgender," a spokesman for the army said on Friday.
The footage shows a man in army uniform whipping the woman with a sjambok - a heavy leather whip.
According to AFP, another soldier then joins in, helping to hold her down to receive more lashes.
No complaint of assault had been lodged, the officials added.
Consensual same-sex relationships are illegal in Malawi and it is believed that LGBTQ-people experience violence and discrimination a daily basis.
Most Malawians subscribe to either Christianity and Islam, and both Abrahamic religions consider homosexuality a sin.