Venezuelan opposition candidate Edmundo Urrutia, who claims to be the rightful winner of the country's presidential election, defied a Supreme Court summon over the disputed results.

The 74-year-old Urrutia, who had been summoned to appear in court said he doubted how impartial the procedure would be.

According to rights groups, Election authorities declared President Nicolas Maduro the winner of the July 28 vote without releasing detailed results, prompting the opposition to cry foul and sparking protests last week which left at least 24 people dead.

The Venezuelan opposition candidate said on social media that  if he does not appear before the court, he will incur legal responsibilities, stressing that if he appears and file copies of voting records, there would be serious criminal responsibilities.

Multiple countries, including the United States and several Latin American nations, have recognized Gonzalez Urrutia as the winner, and have called on Venezuela to publish election data.

Maduro, who has called for Gonzalez Urrutia and opposition leader Maria Corina Machado to be locked up, took the dispute to the Supreme Court to have his said victory "validated."

Meanwhile, Election authorities said they had handed the election data to the court  both institutions are widely considered to be loyal to Maduro's government.