New Delhi, Feb. 23 -- Prosecutors at the International Criminal Court will begin presenting evidence Monday to support their charges against former Philippine President Rodrigo Duterte, detailing his alleged involvement in dozens of killings as part of his so-called war on drugs.

The ex-leader is facing three counts of crimes against humanity for deadly anti-drugs crackdowns he oversaw, first while he served as mayor of the southern Philippine city of Davao and later as president.

Rights groups and families of victims hailed Duterte's arrest in March, saying it was a step forward for justice.

"We have waited for this for so long, for years we have waited, but we did not relent," Llore Pasco told reporters at a news conference ahead of ...