Brazil’s Justice and Public Security Ministry released a preliminary security report on Sunday during voting in the country's presidential runoff election, documenting dozens of electoral infractions across the nation.

According to official data released by security authorities, law enforcement agencies recorded 89 incidents of election-related crimes. The early balance of operations includes nine individuals arrested on the spot, 16 detailed incident reports filed, and 16 people taken into custody.

Two police roadblocks were established, two vehicles seized, and one unit of illegal campaign material was confiscated.

Speaking at a press conference in Brasilia, National Secretary of Penal Policies Andre Garcia outlined the scope of security monitoring throughout election day.

“The main issue is illegal campaigning, which, unfortunately, is very common during this period,” Garcia said. “We are monitoring a number of areas we consider sensitive and conducting specific operations within the prison system.”The security update follows a year of heightened legal scrutiny surrounding democratic processes. According to the Federal Police, law enforcement agencies opened more than 1,600 formal investigations into electoral crimes throughout 2026.

Federal and state security forces remain deployed across the country to oversee voting operations and maintain public order until polls close.

Voting polls opened across Brazil at 8 am local time on Sunday for a deeply polarized presidential runoff election that will determine the political trajectory of Latin America’s largest nation and economy.

The high-stakes election pits 80-year-old incumbent President Luiz Inacio Lula da Silva of the Workers’ Party (PT) against 45-year-old conservative Senator Flavio Bolsonaro, the eldest son and political heir of former President Jair Bolsonaro.

The runoff follows a competitive first-round vote on Oct. 4 in which Flavio Bolsonaro led the field with 47% of valid votes against Lula’s 45%, though both candidates fell short of an outright majority.

The contest enters election day in a statistical dead heat. Datafolha Poll shows both contenders tied at exactly 50% of valid votes.

The election has centered primarily on the rising cost of living, rampant public insecurity, and persistent corruption concerns affecting Brazilians' daily lives.

Lula, who previously governed Brazil from 2003 to 2010 before returning to power after winning the 2022 election against Jair Bolsonaro by less than two percentage points, the narrowest presidential margin in modern Brazilian history, is seeking a fourth non-consecutive term.

Flavio Bolsonaro entered the race after his father was barred from holding public office and sentenced to 27 years in prison following investigations into a planned military coup following his 2022 loss. The former president's political base remains formidable, demonstrated further as his wife, Michelle Bolsonaro, secured a seat in the Federal Senate during first-round voting.

The outcome carries major geopolitical weight across Latin America. A victory for Flavio Bolsonaro would mark a significant return of the right in South America, aligning Brazil with a broader conservative shift across the region closely tied to the Trump administration in the US.

More than 150 million registered voters are expected to cast their ballots electronically across Brazil’s 26 states and the Federal District, with preliminary results anticipated shortly after polls close at 5 pm Brasilia time (2000 GMT).