Tunisian presidential candidate and media mogul Nabil Karoui – who was freed from prison on Wednesday – says he will “wage battle and win” Sunday’s run-off election, AFP news agency reports.
Mr Karoui received a hero’s welcome from his supporters in the capital, Tunis, after a court ordered his release.
He had contested the first round of the presidential election from prison after being accused of money laundering and tax evasion, which he denies.
“Yesterday, the judicial system set me free. There was no deal [for my release],” AFP quotes Mr Karoui as telling his supporters during last-minute campaigning.
Mr Karoui – who has never run for political office before – came second in the first round of the presidential election last month.
He took 15.6% of the vote compared with the 18.4% of another outsider, law professor Kais Saied.
The two saw off a crowded field of 24 other candidates, and their progression into the second round was seen as a major blow to the political establishment.
It is Tunisia’s second free presidential poll since the 2011 uprising that toppled ex-President Zine al-Abidine Ben Ali and sparked the Arab Spring.