Cameroon edged Angola 1-0 in Group B action at the African Nations Championship on Sunday.
Atouba Emane scored the lone goal in the 24th minute, placing Cameroon joint-top of the group after one round of play.
In the other game, DR Congo thrashed Ethiopia 3-0.
Basisila Lusadisu scored the opener just a minute before the break.
Heritier Luvumvu doubled the advantage seconds after half-time, and Nelson Omba Munganga completed the scoreline with a strike 10 minutes later.