Senegalese voters hit polling stations across the West African country on Sunday morning to elect their new President.
President Macky Sall was expected to win following strong economic growth in his first term and weak opposition candidates before him.
The two popular candidates who could have posed a real threat to Sall were disqualified.
Former mayor of Dakar, Khalifa Sall and Karim Wade, son of former President Abdoulaye Wade, were barred from running due to corruption convictions.
In a statement, President Abdoulaye Wade, who was in power from 2000 to 2012, said the vote was being rigged and told supporters of his son to boycott the poll.
The other serious but weak opposition candidate is Ousmane Sonko. In all, there are four opposition candidates but no one gives them a chance.
Sonko is a former tax inspector who is popular among the youth while third-time contender and former Prime Minister Idrissa Seck and lawyer Madicke Niang and IT professor Issa Sall are also running.
Sall, 57, has promised to deliver universal healthcare and better access to education in his second term.
“Victory in the first round is inevitable,” he told a crowd earlier in the week.
About 6.5 million people are registered to vote and official results are due out on Friday with a run-off for the top two on March 24 if no one secures a majority.