(CNN) Turnout figures for an election to a controversial new legislative body in Venezuela were manipulated, the company that provided the voting technology has said. Antonio Mugica, CEO of London-based Smartmatic, said there was a discrepancy of at least 1 million votes between the officially declared tally in Sunday's election to the National Constituent Assembly and the one his company recorded. A full audit would be needed to confirm the exact numbers, he said. Venezuela's National Electoral Council has reported that more than 8 million people, or about 41.53% of registered voters, cast ballots. The head of the council called Mugica's assertions irresponsible.Criticism is unfounded, election official says, because company didn't see vote totalsCompany sees disparity of at least 1 million votes in government's turnout figures
Venezuela has used _ voting systems in elections since 2004, according to the company.