Polling stations have officially closed across Brazil following a high-stakes general election that saw heavy voter turnout and long queues. Roughly 160 million citizens across the country and abroad were eligible to participate in choosing the nation's next leader.

The presidential contest has narrowed down to a fierce battle between incumbent left-wing President Luiz Inácio Lula da Silva and right-wing challenger Flávio Bolsonaro. Polling data leading up to the election indicated an extremely tight race, with a margin of just two percentage points separating the two front-runners.

If neither candidate manages to secure an outright majority exceeding 50 percent of the valid ballots, the contest will advance to a second-round run-off scheduled for October 25. While a total of 11 candidates entered the presidential race, pre-election aggregators suggested that minor contenders would collectively capture only about 10 percent of the vote.

After casting his ballot, the 80-year-old incumbent framed the election as a fundamental choice between preserving democratic institutions and descending into lawlessness. Meanwhile, his 45-year-old opponent campaigned on a platform aimed at liberating the Brazilian population from current governance.

Early indicators from international polling stations where expatriates cast their ballots showed mixed results. Lula secured strong majorities among overseas voters in nations such as China, South Korea, New Zealand, and Saudi Arabia. Conversely, Bolsonaro captured dominant shares of the vote in Israel and Japan.

Brazil utilizes an electronic voting system, which typically allows election authorities to process and release official tallies within hours of polls closing. The Superior Electoral Court has not specified an exact timestamp for the final announcement, though results are anticipated swiftly.

Beyond the presidency, voters also cast ballots to fill 54 of the 81 seats in the federal Senate, an outcome that will reshape the legislature when the new term begins in February 2027. The current Senate is led by the Liberal Party, the political home of the challenger, followed by the Social Democratic Party, which has collaborated within the incumbent administration.

This election carries significant historical weight following the turbulent political climate of the previous national vote four years ago. The current challenger is the son of former leader Jair Bolsonaro, who is currently serving a 27-year prison sentence under house arrest due to health concerns after being convicted of orchestrating a coup plot following the last election.

Although the elder Bolsonaro remains barred from holding public office and restricted from making public statements or using social media, his political influence continues to loom large over his son's campaign. A potential victory for the challenger would expand a broader regional trend of conservative governance across Latin America. At the same time, a continuation of Lula's administration could sustain ongoing diplomatic friction with Washington concerning trade and security policy.

Reporting based on coverage first published by BBC News. Read the original report at BBC News.