This is the Global News podcast from the BBC World Service.

I'm Nick Miles, and in the early hours of Thursday the 22nd of May, these are our main stories.

In an extraordinary meeting at the White House, Donald Trump has confronted the South African president, Cyril Ramaphosa,

with a video which he said supported his discredited claims of a white genocide in South Africa.

Benjamin Netanyahu has said that he believes only 20 of the remaining 58 Israeli hostages in Gaza are definitely alive.

Police in Italy have carried out a nationwide operation against the Andrangetta,

considered to be the most powerful mafia clan.

Also in this podcast.

There are millions of malaria cases every year and nearly half a million deaths,

most of them in young children.

So it's a really serious issue in many parts of Africa.

But could this deadly

disease be curtailed by giving the offending mosquitoes anti-malaria drugs?

We begin in Washington, D.C., where what South Africa was hoping would be an opportunity to reset

relations with the US President

Donald Trump has been anything but. This is a year in which President Trump has repeatedly suggested

that South Africa's white Africana community is facing genocide. Well, in front of the media in the

most public of spaces, the Oval Office, Mr. Trump doubled down on that

unsubstantiated claim. We have many people that feel they're being persecuted and they're coming

to the United States. So we take from many locations if we feel there's persecution or genocide

going on. And we had a lot of people. I must tell you, Mr. President, we have

had a tremendous number of people, especially since they've seen this. Generally, they're white

...