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

I'm Andrew Peach and at 13 hours GMT on Tuesday, the 27th of August.

These are our main stories.

Ukraine has warned that Russia is building up its forces near the strategically important town of Pachrovsk.

The UN says its humanitarian work in Gaza has been hampered by Israel's new evacuation orders.

And the US National Security Advisor is in Beijing. by Israel's new evacuation orders.

And the US National Security Advisor is in Beijing

for the first time in eight years.

Also in this podcast, a message from the new British Prime Minister.

Things will get worse before they get better.

If we don't take tough action across the board,

we won't be able to fix the foundations of the country as we need.

For the second day in a row, Ukraine has been facing a barrage of Russian missiles and drone attacks in which several people have been killed.

Here's Vladimir O'Elyan, who's a major in the Ukrainian armed forces, and told the BBC the

attacks were a sign of Russian desperation.

It's another good example that Putin doesn't know what to do and how to handle a situation in Kursk region.

The last biggest red line was crossed by Ukrainians and we brought war back to Russia.

And Kremlin is desperate about that.

They are trying to attack our positions in the Eastern Ukraine, but it looks

like they don't have enough resources and what they can only do is to bomb Ukrainian cities.

At the same time Ukraine's military leaders have been warning that Russia is building up its forces

near the strategically important town of Pockrovsk, which has been under Russian assault for several months.

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