Venezuela opposition leader Maria Corina Machado said on Monday the country's opposition has 73.2% of the voting tallies from Sunday's election, allowing it to prove election results it says give it a victory.
The national electoral authority has proclaimed incumbent President Nicolas Maduro the winner of the vote, giving him a third term in office and extending 25 years of socialist party rule.
But independent pollsters called that result implausible, and opposition leaders and foreign observers urged the electoral authority to release vote tallies.
The tallies in possession of the opposition showed a total of 2.75 million votes for Maduro and 6.27 million for his rival, former diplomat Edmundo Gonzalez, Machado said.
The numbers were sharply different to the 5.15 million votes the electoral authority said Maduro had won, compared to 4.45 million for Gonzalez.
Witnesses assigned to observe vote counts have a right to a copy of each voting machine's tally, but the opposition said overnight that some witnesses were blocked from following counts and that at other sites the tallies were not printed.