A major Venezuelan opposition group has registered a candidate for July's presidential election to ensure a spot on the ballot, even though the primary winner and her alternate were unable to sign up, electoral authorities and sources said on Tuesday.

Venezuela opposition registers presidential candidate to keep spot on ballot

The opposition coalition had previously accused the Maduro government of blocking the presence of foreign ministers at this week's talks, but on Tuesday said it appeared to be more a scheduling problem.

Venezuela opposition says talks with government delayed

The opposition, which boycotted the vote, has dismissed the official tally as fraudulent

Venezuela: President Maduro rejects accusations of election fraud

Venezuela's opposition called a nationwide strike to press President Nicolas Maduro to back off a rewriting of the constitution

Trump warns Venezuela's Maduro of 'economic actions' over bid to rewrite constitution