Tunisia bounced back from their controversial opening defeat at the Africa Cup of Nations by brushing aside Mauritania 4-0 in Group F.
Hamza Mathlouthi drove in a half volley in the fourth minute and Wahbi Khazri slotted in a second four minutes later.
Khazri got his second after the break and Seifeddine Jaziri added the fourth.
Substitute Youssef Msakni, who featured at his seventh Nations Cup after recovering from coronavirus, missed a late penalty for the 2004 champions, pulling his effort against the left-hand upright.
The Carthage Eagles are just the second team to score four goals in a game at this year’s Nations Cup, after hosts Cameroon, and victory puts them a point behind The Gambia and Mali.
Tunisia faces the Gambians in their final group match on Friday (19:00 GMT), while back-to-back defeats mean Mauritania can no longer reach the last 16.