The victory, which requires confirmation by the Constitutional Court, gives a third term in office to the 82-year-old Conde after a bitterly-fought election in which the opposition said he had no right to participate.

Some people went to the streets to protest immediately after the announcement.

Such demonstrations have occurred for months after the government changed the constitution through a national referendum, boycotted by the opposition, that allowed Conde to extend his decade in power.

Conde says a constitutional referendum in March reset his two-term limit, but opponents say he is breaking the law by holding onto power.

Results were announced in batches in recent days, and already showed Conde with an unassailable lead, sparking street protests in opposition strongholds in which at least 17 died.

Opposition candidate Cellou Dalein Diallo, Conde's nearest rival with 33.5% of the vote, said he has evidence of fraud and plans to file a complaint with the constitutional court.

Under the law, complaints must be filed within eight days of the preliminary results.

Conde, a former opposition leader who was sentenced to death in 1970 by Marxist President Sekou Toure, finally won the top job in 2010.

His election raised hopes for democratic progress but critics say he has stifled dissent.

Diallo, 68, is a former prime minister who also finished runner-up to Conde in the 2010 and 2015 elections.

Australian Associated Press