Alex Ritson

Mr De La Rosa spoke to reporters shortly after fleeing into the Senate.

I spoke to our Southeast Asia correspondent, Jonathan Head, who began by describing the chaotic scenes at the Philippines Parliament.

Senator De La Rosa, who, as you say, has been missing in action from the Senate for several months, pretty much since rumours emerged that there was going to be a second arrest warrant from the ICC served on him, suddenly appeared at the door.

There must have been expectations he might turn up because National Bureau of Investigations officers were there.

He says they tried to stop him entering.

He says he managed to barge his way through.

He's a big bull of a man, a really burly figure.

And then if you look at the security camera video, you can see them chasing him up the fire escape stairs.

And he's quite a heavy man, but he was running just ahead of them, breaking through doors, got into the Senate chamber.

Now, the Senate, the upper house in the Philippines, is at the moment dominated by allies of President Duterte and, of course, sympathetic allies.

So the president of the Senate then announced that he was under the sanctuary of the Senate and that he cannot be arrested there.

There's some debate in the Philippines whether that is or isn't exactly possible.

But there's a bigger picture here.

On the one hand, you've got the quest for accountability for those thousands of drug deaths.

in which de la rosa as the police chief at the time of the right-hand man of president duterte is a key figure and the icc says there are definitely strong grounds for him to be prosecuted he's never been brought to trial or even an attempt to do so in the philippines you also have this epic feud between the family of president marcos

and the family of President Duterte.

They were allies when they won the election four years ago.

They've fallen out badly.

And, of course, the Duterte camp say the Marcos government's willingness to cooperate with these ICC arrest warrants is all political.

It's all an attempt to damage the Duterte camp.