Venezuelan President Nicolás Maduro is facing mounting pressure, at home and abroad, to release evidence that would verify the results of Sunday’s presidential election, which both he and his main challenger claim to have won.

Thousands of people have been protesting since Monday when Maduro and opposition candidate Edmundo González declared victory.

It’s estimated that at least 12 people have died and 92 injured as a result of the protests, according to the National Hospital Survey, a…