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Hello, welcome to the programme.

This is News Hour from the BBC World Service.

We're coming to you live from London.

My name's Paul Henley.

First today, several European countries have blamed the Kremlin for killing

the Russian opposition leader Alexei Navalny. They say his murder was likely carried out

using a poison developed from a toxin in a rare South American frog. Today's statement

follows tests on the body of Mr. Navalny by five separate laboratories.

It's almost two years since he died in a Siberian penal colony.

The Russian government has always denied any involvement.

After the statement was made, Alexei Navalny's widow, Yulia and Navalnya, spoke to the media.

Two years ago, I was here in Munich.

It was the most horrible day in my life.

I came to the stage and I said that my husband, Alexei Navalny, was poisoned.

What could else happen with Putin's number one enemy? But now I understand and I know it's not just

the words. It's scientific proof. Frank Gardner is the BBC's security correspondent and is reporting from the Munich Security

Conference where the announcement of the test results was made. He's been telling me more.

This is an absolutely shocking development. It's no surprise to anybody I think that Alexei

Navalny was murdered, but the way in which Britain, France, Germany, the Netherlands,

and Sweden have all got together to release this joint finding that they believe it is highly

likely that he died from being poisoned with this South American poisoned dart frog neurotoxin.

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