West assails Russian 'barbarism' as Ukrainians shelter

Western leaders piled on military and humanitarian aid for Ukraine today and denounced Moscow's invasion of its neighbour as "barbarism" as thousands in besieged cities sheltered underground from Russian bombardment.

At an unprecedented triple summit in Brussels, transatlantic alliance NATO, G7 nations and European leaders addressed the continent's worst conflict since the 1990s Balkans wars.

NATO announced plans for new combat units in four eastern European countries near Ukraine, while Washington and London increased aid and expanded sanctions to new targets, including a woman who London said was the stepdaughter of Russia's foreign minister.

Responding to today's show of unity in Brussels, Moscow said the West had itself to blame for the war by arming the "Kyiv regime".

The Russian invasion unleashed one month ago, on 24 February, has killed thousands of people, sent 3.6 million abroad, smashed cities and driven more than half of Ukraine's children from their homes, according to the United Nations.

'Turned to dust'

"A beautiful Mariupol used to be and suddenly it was turned into dust," lamented 83-year-old Raisa Kairat in the besieged southern port that has become a wasteland.

In Mariupol, which lies between Russian-annexed Crimea and eastern areas held by Russian-backed separatists, thousands are in basements with scant water, food, medicine or power, seeking shelter from heavy Russian bombardment.

In one part captured by Russian troops, a patch of grass between blasted buildings has become a makeshift graveyard. Freshly dug mounds are marked with plastic flowers and crosses made from broken window frames.

"It could have been me," sobbed Viktoria as she buried her 73-year-old stepfather Leonid, killed when the car ferrying him to hospital was blown up.

So far, Moscow has failed to capture any major city. Despite relentless shelling by Russia, its armoured columns have barely moved in weeks, stalled near the capital Kyiv and besieging cities in the east.

They have taken heavy casualties and are low on supplies. Ukraine says it is now shifting onto the offensive and has pushed back Russian forces, including north of Kyiv.

Ukraine's armed forces said they repulsed five Russian attacks in the country's east today, destroying vehicles including tanks and killing up to 130 soldiers.

Ukraine also said its forces had destroyed the Russian landing ship the "Orsk" at the Russian-occupied port of Berdyansk.

Video footage, which Reuters confirmed was from Berdyansk, showed smoke rising from a blaze at a dock and the flash of an explosion. Russian officials did not immediately respond to requests for comment.

Russia isolated again at UN

Ukraine's armed forces chief of staff said Russia was still trying to resume offensives to capture the cities of Kyiv, Chernihiv, Sumy, Mariupol and Kharkiv.

In Kharkiv, Ukraine's second-largest city, hundreds have hunkered down inside metro stations deep underground to avoid Russian missile strikes and near-daily shelling.

One woman sheltering in the metro, Natalia Shaposhnik, said she knew Russians who did not believe that civilians have been shelled, despite the carnage of the past four weeks.

"I wrote to them (that) I've been sheltering with my child in the metro for a month and they don't believe me. They say, 'It is your own fault, you are to blame, it is you, you, you,'" she said.

At the UN, almost three-quarters of the General Assembly demanded aid access in Ukraine and criticised Russia for the "dire" humanitarian situation - the second time the body has overwhelmingly isolated Moscow over the invasion.

Chechen leader Ramzan Kadyrov, a Putin ally, posted on social media that Chechen fighters had captured the main administrative building in Mariupol and raised their flag there. His account could not be confirmed independently.

In the Russian-held part of the city, trucks arrived with food supplies in boxes bearing the "Z" symbol of what Russia calls its "special operation". Hundreds of people, many elderly, emerged from ruins, queuing mostly in silence as men in Russian emergencies ministry uniforms distributed boxes.

Angelina, a young mother-of-two, said she had received bread, nappies and baby food. "It's difficult to leave by bus now. We hope the number of people trying to get out will go down and it will get easier for us to leave," she said.