An unofficial vote count in the Philippines presidential election showed a huge early lead for Ferdinand Marcos Jr, the son and namesake of the notorious late dictator who ruled the country for 20 years.

Marcos had 15.3 million votes, more than double the number those of his nearest rival, Vice President Leni Robredo, with 46.9 percent of the number of eligible ballots counted, according to an unofficial count by the Commission on Elections...