Venezuela's Maduro defies exit polls to claim third presidential term

CARACAS (Reuters) -- Venezuelan President Nicolas Maduro has won a third term with 51% of the vote, the country's electoral authority said just after midnight on Monday, despite multiple exit polls that pointed to an opposition win.

The authority said opposition candidate Edmundo Gonzalez won 44% of the vote, though the opposition had earlier said it had "reasons to celebrate" and asked supporters to continue monitoring vote counts.

Maduro, appearing at the presidential palace before cheering supporters, said his reelection is a triumph of peace and stability and reiterated his campaign trail assertion that Venezuela's electoral system is transparent.

He will sign a decree on Monday to hold a "great national dialogue," Maduro added.

U.S. Secretary of State Antony Blinken said the United States had "serious concerns that the result announced does not reflect the will or the votes of the Venezuelan people."

Blinken called for electoral authorities to publish a detailed tabulation of votes.

A poll from Edison Research, known for its polling of U.S. elections, had predicted in an exit poll that Gonzalez would win 65% of the vote, while Maduro would win 31%.

Local firm Meganalisis predicted a 65% vote for Gonzalez and just under 14% for Maduro.

About 80% of ballot boxes have been counted, said National Electoral Council (CNE) President Elvis Amoroso in a televised statement, adding results had been delayed because of an "aggression" against the electoral data transmission system.

The CNE has asked the attorney general to investigate the "terrorist actions" Amoroso said, adding participation was 59%.

The CNE is meant to be an independent body, but the opposition alleges it acts as an arm of the government.

The top opposition official