Spain has denied involvement in negotiations between Venezuelan opposition leader Edmundo Gonzalez and President Nicolas Maduro's government for his flight to Spain, before which he signed a letter saying he accepted Maduro's victory in the country's July election.

The letter, according to González, was a condition for his escape to Spain, where he arrived on Sunday after weeks in hiding. Venezuela's National Electoral Council declared Maduro the winner of the July 28 election, citing 51 percent of the vote for ...