Former Philippine President Rodrigo Duterte said he takes full responsibility for his administration's "war on drugs", in a video message posted on his Facebook account, as he braces for a legal battle at the International Criminal Court.

Former Philippine President Rodrigo Duterte is now in the custody of the International Criminal Court (ICC) in the Netherlands following his dramatic arrest in Manila the day before over a brutal, years-long anti-drugs crackdown that left thousands of his citizens dead.

Rodrigo Duterte previously insisted that the ICC has no jurisdiction over the Philippines, since he pulled the country out of the tribunal in 2019, three years after it took note of the drug war's rising death toll.