The report documents 122 killings of children, aged from one to 17 years old, between July 2016 and December 2019, throughout the country.
“The 122 is only the tip of the iceberg; there may be many more in the country,” OMCT secretary-general Gerald Staberock told reporters in a virtual briefing.
“Imagine if you would have seen these 122 cases on camera. Imagine the outcry.”
The human rights situation in the Philippines is due to be raised at the UN Human Rights Council in Geneva, which starts its 44th session on Tuesday.
The council asked Michelle Bachelet, the UN High Commissioner for Human Rights, to prepare a written report and present it at the session, followed by an “enhanced interactive dialogue” on its findings.
The report, published in early June, says the war on drugs has led to systematic and widespread killings in a context of near-impunity.
The Philippines is one of the 47 countries currently sitting on the council.