[1/2] Voters queue at a polling station to vote during the Fijian general election in Suva, Fiji, December 14, 2022.
Bainimarama is in a tight race against another former coup leader and one-time prime minister, Sitiveni Rabuka, whose People's Alliance Party has formed a coalition with Fiji's oldest political party, the National Federation Party.
The election office said result updates were put "temporarily on hold" shortly before 11 p.m., and later said its election results app, used by the public, had errors.
Bainimarama's Fiji First supporters campaigned on stability and progress, while the opposition said national debt was too high and questioned the state of democracy, he said.
A multinational observer group led by Australia, India and Indonesia includes 90 election observers who are also monitoring the national vote counting centre.