Tunisians will go to the polls on 15 September after the death last month of 92-year-old president Beji Caid Essebsi. He was the first democratically-elected president after Moncef Marzouki became transitional president after the uprising in 2011.
A number of notable candidates are vying for top office, including Marzouki, in addition to Prime Minister Youssef Chahed and Defence Minister Abdelkarim Zbidi.
Former prime minister Medhi Jomaa, moderate Ennahda Islamist party vice president Abdel Fattah Mourou, and private Nessma TV station owner Nabil Karoui are also joining the race.
The two women candidates include Salmi Loumi, former tourism minister, and Abir Moussi, ardent supporter of deposed Tunisian dictator Zine El Abidine Ben Ali.