Holders Kenya recorded a second consecutive straight sets victory on day two of the African Women's Volleyball Championship.
The Kenyans, who are seeking a fourth successive title, beat a Senegal side who also started their campaign with victory yesterday.
They registered a 25-21, 28-26, 25-15 win at the Yaoundé Multipurpose Sports Complex in Cameroon's capital city.
Elsewhere in Group B, Tunisia came from behind to beat Nigeria in four sets.
They triumphed 19-25, 25-20, 25-10, 25-11 to begin their tournament after not being involved on day one yesterday.
It meant a second defeat for Nigeria who were beaten by Kenya on the first day.
In the sole game in Group B, Egypt and Algeria opened their tournaments against each other with the former winning in straight sets.
The Egyptians were always comfortable in a 25-12, 25-17, 25-14 success.
The top two teams in Yaoundé will qualify to play at next year's World Championships, due to take place in Japan from September 29 to October 20.