Official results from the Philippines Election Commission shows key allies of detained former President Rodrigo Duterte and two liberal opposition candidates are among top winners in the nation's midterm Senate race.

Former Philippine President Rodrigo Duterte was almost certain to be elected mayor of his home city by a landslide on Monday, unimpeded by his detention at the International Criminal Court on charges of murder as a crime against humanity.

Duterte wins by such an overwhelming margin as to suggest the case against him is only embellishing his popularity. While activists castigate him