What we know about Ukraine and Russia's 'restricted' battle for Kherson

The city of Kherson, in Ukraine, was the biggest prize seized by Russia in the first month after its invasion on 24 February.

Now there are suggestions that Russia might be about to give up at least part of the city as it prepares defensive lines for the winter.

But finding out what is happening in Kherson is difficult, Ukraine has imposed reporting restrictions and most of the frontline remains off limits to journalists.