Scurrying through the backhalls and stairwells of the Philippine Senate, trailed by aides and falling over at least once, the large, bald man was trying to evade local agents.

At the center of this comedic cat-and-mouse chase was Senator Ronald Dela Rosa, a longtime ally of former Philippine President Rodrigo Duterte, who has gone from a powerful enforcer of a bloody drug crackdown to a wanted criminal on the run.

The scene was captured on CCTV and quickly became talk of the entire country.

Prosecutors at the International Criminal Court (ICC) accuse Dela Rosa of conspiring with Duterte in alleged crimes against humanity, during a brutal anti-drug campaign that killed thousands.

On Monday, the ICC confirmed it had issued an arrest warrant for him, citing incidents in which 32 people were killed between 2016 to 2018. When local investigative unit officers failed to arrest the 64-year-old, having pursued him through the bowels of parliament, riot police surrounded the Senate compound.