Hello, I'm Karni Sharpe on the BBC World Service and this is BBC OS Conversations talking to Ukraine's children.

An estimated 4 million people, mostly women and children, have escaped from Ukraine and its war.

Two mental health professionals consider how children are trying to understand what's going on.

When they discuss the death, what they saw, either on the news or themselves, is to tell them that it's okay to feel disgusted, to feel,

oh my god, things got that did not happen to me or my parents, my mom, my siblings.

We'll hear from two Ukrainian therapists a little later, but we'll begin with the latest developments during the past seven days.

Now the week began with fresh face-to-face peace talks in Turkey.

Russia said it would cut back military operations around the city of Chernihev and the capital Kiev and would focus on the eastern region of Donbass.

But Russia was also quick to say it was not a ceasefire and indeed there has been no letter up in attacks on Ukraine.

Now the Donbass region that borders Russia includes the cities of Donetsk and Luhansk.

There's been fighting there since 2014 between Ukraine and Russian-backed separatists.

Dmitra Yarashenko is a student from Donbass who is now studying in Liviv in Western Ukraine.

His parents and sister still live in his native town of Konstantinovka.

Andrei Kulikov is a journalist in Kiev. Shortly after those peace talks, my colleague Krupa Party brought the two together and began by asking Andrei to describe his current location.

Right now I'm on a rather empty street not far from the railway station in Kiev.

Even 15 minutes ago I heard a lot of outgoing fire. The Ukrainian air defense was working. Luckily I haven't heard any incoming fire but Kiev is a big city.

Who knows what's happening on the other end.

At the moment I can see at least four people in my field of vision and one of them is carrying a bag of supposedly food because I know the supermarket not far away.

Two of them are working in hand a girl and a guy. And another person I can't make out because he is rather far away.

And what you describe will sound to so many like a normal residential street.

Dmitra, you are in Liviv where you are studying. A city that has been considered a safe haven for so many Ukrainians.

But a city that no doubt will have changed with the sheer number of people arriving into it. Just describe what you can see in here.

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