Members of the New People's Army (NPA) ambushed and shot the motorcycle officers while they were riding in Negros Oriental province on July 18, according to police. "Still not satisfied with the blood of their prey, the terrorists also looted the dead of their firearms, valuables and personal belongings, and drove off with the victims' motorcycle," reads a statement by the Philippine police.
In response, Duterte on Thursday offered three million pesos ($59,000 US) to whoever could bring him the "head" of NPA's leader - up from one million pesos earlier, for what he said was an Islamic State group-style killing.
"They were burned like (by) ISIS that's why I got mad," said Duterte in a speech.
Duterte - who said he only wants the "head" and not the body of the leader - said he intended to increase the bouty to 20 million pesos ($392,000 US)