Updated 6:10 a.m. ET Tuesday:
With 87 percent of precincts counted, Rodrigo Duterte, the mayor of southern Davao City, appears to have clinched the Philippine presidential election. Michael Sullivan reports for our Newscast Unit that Duterte, who began as a political outsider, "collected nearly twice as many votes as his two main rivals, including the man supported by outgoing President Benigno Aquino."
Results are still not official, but his two closest rivals have withdrawn from the race in the face of Duterte's commanding lead, Reuters reports.