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

I'm Rachel Wright, and at 14 hours GMT on Friday the 27th of December, these are our main stories.

NATO steps up efforts to protect cables in the Baltic Sea after a power cable is cut.

Russia is accused of sabotageage but denies any involvement.

Chaos in South Korea as the acting president is impeached after just two weeks in the job.

And Israel orders staff and patients out from one of the last remaining hospitals in northern Gaza.

Also in this podcast, a convoy of food arrives in the south of Sudan's capital for the first time.

There were tears, tears of laughter and joy and tears of a lot of effort and exhaustion.

It was quite a moment, I mean, for everyone, it was big.

And NASA says its solar probe has made history.

NATO has said it will increase its naval presence in the Baltic,

after what official suspect was Russian sabotage of an undersea power cable linking Finland and Estonia.

The Estlink two cables stopped working on Christmas Day.

Now the Estonian Navy has launched an operation to protect the remaining working cable,

which supplies the country with power from Finland.

Finland's president, Alexander Stubb, spoke about the incident at a news conference.

Our message is quite clear. We've got the situation under control and we have to continue work

together vigilantly to make sure that our critical infrastructure is not damaged by outsiders.

It's too soon to draw conclusions yet why this happened. We know who did it. Our Europe regional editor, Paul Moss, told me more.

The S-Link two cable, as it's called, stopped working on Christmas Day. And it didn't really require

a major investigation to guess

why this happened. Because at exactly the same time it stopped, a ship passed overhead, slowing down

...