The former president of the Philippines, Rodrigo Duterte, appeared before judges at the International Criminal Court in The Hague on Friday, days after his arrest in Manila on murder charges linked to the deadly “war on drugs” that he oversaw while in office.

Former Philippines president Rodrigo Duterte is expected to arrive in the Netherlands on Wednesday to face a crime against humanity charge stemming from his crackdown on drugs. After landing, he will be taken to the International Criminal Court’s detention unit,

The former Philippine president is the first former leader from Asia to face charges at the International Criminal Court. Human rights groups say his violent crackdowns left up to 30,000 dead.