Dozens of people killed in fighting between rival armed groups in Tripoli.
Economic crisis and political repression have pushed many away, but Saied is still backed by some.
The Tripoli-based governing body chooses Mohammed Takala as leader in a run-off by 67 votes to 62.
Bola Tinubu takes over at a time of political division and economic difficulties.
Some 300 demonstrators in Tunis demanded freedom for former ministers, businessmen and other opposition members.
EUs offer of one billion euros to Tunisia has been criticised by rights groups that say it compromises refugee rights.
Ties with Damascus are being normalised, as the bloc hopes for an ?Arab-led political path? to solve the Syrian crisis.
Friction between the army and the RSF paramilitary group was exacerbated by Sudans political process, analysts say.
Tinubu has a formidable political machinery & is credited with Lagoss successes, but can he become Nigerian president?
Signing of political agreement to name a Sudanese civilian government has been delayed to April 6, official says.