In pictures: Russia intensifies attacks on Ukraine

Russian forces have seized control of the key port of Kherson in southern Ukraine, the first major city to be taken since Moscow invaded on 24 February.

CCTV footage shows Russian combat vehicles on the central square of Kherson on Wednesday night

Kherson's mayor, Ihor Kolykhayev, said Russian troops had forced their way into the city council building

The capture of Kherson could allow Russia to create a base for the military there as it seeks to push further inland

Several cities have come under intense shelling. Kharkiv, Ukraine's second-largest city in the north-east, has been under a fierce aerial assault for several days now

This is how Kharkiv's Constitution Square - one of the symbols of the city - looks now

This aerial view shows a residential building that was destroyed by shelling in the town of Borodyanka, near Kyiv

Smoke rises from damaged buildings in the northern city of Chernihiv

Children look out from an evacuation train to Ukraine's western city of Lviv as they say goodbye to their father in Kyiv

More than 800,000 people have fled Ukraine since Russia launched a full-scale invasion

A child looks out from a carriage window as a train prepares to depart from a station in Lviv, western Ukraine, en route to Uzhhorod, on the Slovakia border

Ukrainian soldiers at a frontline, north-east of Kyiv (above and below)

Ukrainian soldiers around Kyiv have been involved in fierce battles with Russian forces

Workers from a local construction company weld anti-tanks obstacles to be placed on roads around Kyiv

Meanwhile in Kyiv, volunteers have been gathering food and supplies donated from Ukraine's western cities

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