A new public opinion poll shows Brazilian President Dilma Rousseff and opposition candidate Aecio Neves are running neck-and-neck ahead of the October 26 runoff presidential election.
The survey conducted by the research firm Vox Populi indicated that support for Rousseff now stands at 45 percent while Neves has 44 percent.
The findings of other polling firms, Datafolha and Ibope, this week also found the race too close to call.
Pro-business Neves has gained ground since his surprise performance in the first round, when he finished in second, ahead of popular environmentalist Marina Silva and behind Rousseff.
On Sunday, Neves secured Silva's endorsement, increasing his prospects in the October 26 election.
The latest allegations of bribery involving Brazil’s state-run oil company Petrobras and top government officials are also likely to hit Rousseff’s runoff campaign.