Around 13% of Mexicans likely turned out to vote in the country's first-ever judicial election, Mexico's INE electoral authority said on Monday, as the government hailed a successful process while analysts said the low turnout could undermine an already controversial reform.

Voters across Mexico went to the polls on Sunday to elect thousands of judges, from the local level to the Supreme Court, pressing ahead with one of the most far-reaching judicial overhauls ever attem...