Peru's electoral jury has begun reviewing contested ballots with the initial count to determine the country's next president virtually complete and candidates separated by the slimmest of margins.
Conservative Keiko Fujimori inched into the lead late on Wednesday night, boosted by overseas ballots that gave her 50.002 per cent of the vote to leftist Roberto Sanchez's 49.998 per cent, a difference of about 600 votes out of 18 million.
More than 98 per cent of the vote has been counted according to Peru's ONPE electoral authority, but most of those remaining are contested ballots.
