Victims and human rights groups said that Duterte should not be the only one held accountable. They also demand justice against others involved, including his former police chief, now Senator Ronald dela Rosa, who oversaw the bloody crackdown and is under ICC investigation.

Former Philippines leader Rodrigo Duterte was sent to The Hague on Tuesday hours after he was arrested in Manila at the request of the International Criminal Court as part of its probe into a "war on drugs" that defined his presidency.

Former Philippine President Rodrigo Duterte has been put on a plane to The Hague following his arrest on an International Criminal Court (ICC) warrant, his daughter and local outlet The Philippine Star have reported.