Tunisia beat Rwanda while Egypt overcame South Africa to put the two North African teams on top of their respective competition pools. Meanwhile Libya and Algeria secured their first victories.
The African Nations Championship is a qualifying event for the FIVB Men's U21 world Championship to be held in Turkey later this year with the top four teams in Tunis guaranteed a ticket.
In Pool A, hosts Tunisia pulled off an easy victory over Rwanda in straight sets (25-13, 25-15, 25-17) in 57 minutes by dominating at the net. Tunisia improved their win-loss ratio to 2-0.
Algeria claimed their first victory following a rest day on the first day, downing Sierra Leone 3-0 (25-14, 25-15, 25-14). Sierra Leone dropped to 0-2.
In Pool B Egypt flew past South Africa 3-0 (25-11, 25-15, 25-14) to improve to 2-0 and lead the pool at the end of the second day. South Africa dropped to 0-2.
Libya played the most competitive match of the tournament to beat RD Congo 3-2 (28-26, 25-20, 18-25, 21-25, 15-13) in two hours of thrilling action. The victory was the first for the Libyans in their first match.