Rodrigo Duterte, the former president of the Philippines, will stand trial for crimes against humanity after judges at the International Criminal Court (ICC) confirmed his charges.

Axar.az informs, citing BBC, that the 81-year-old is accused of the extrajudicial killing of thousands during his deadly "war on drugs" between 2011 and 2019.

Those charges that were "unanimously confirmed" by pre-trial judges, who had "substantial grounds to believe" that Duterte had committed the alleged crimes, the ICC said in a statement on Thursday.

The confirmation of Duterte's trial comes after several appeals by the ex-president to be released from detention, where he has been held for more than a year.

Duterte has refused to recognise the ICC proceedings, arguing that during his presidency in 2019 the Philippines had pulled out of the Rome Statute, the ICC's founding agreement.

But on Wednesday, judges in the ICC's Pre-Trial Chamber ruled that the court could still hear Duterte's case, given that the alleged crimes had happened between 2011 and 2019 - while the Philippines was still a member of the ICC.

According to the ICC, judges have also authorised more than 500 victims to take part in proceedings.

At the heart of the trial is Duterte's "war on drugs" campaign, which human rights groups say targeted and killed small-time drug dealers while failing to nab the kingpins.