Ukrainian soldiers resisted a Russian ultimatum to lay down arms today in the port of Mariupol, which Moscow said its forces had almost completely seized in what would be its biggest prize of the nearly two-month war.
Ukrainian Prime Minister Denys Shmyhal said troops in Mariupol were still fighting despite a Russian demand to surrender by dawn.
"The city still has not fallen," he told ABC's This Week programme, adding that Ukrainian soldiers continue to control some parts of the city.
Russia said yesterday it had control of urban parts of the city, with some Ukrainian fighters remaining in the Azovstal steelworks overlooking the Sea of Azov.
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Capturing Mariupol, the main port in the southeastern region of Donbas, would be a strategic prize for Russia, connecting territory held by pro-Russian separatists in the east with the Crimea region that Moscow annexed in 2014.
After failing to overcome Ukrainian resistance in the north, the Russian military has refocused its ground offensive on Donbas while maintaining long-distance strikes elsewhere including the capital, Kyiv.
About four million Ukrainians have fled the country, cities have been shattered and thousands have died since the start of the invasion on 24 February.
"The occupiers will be responsible for everything they did in Ukraine," President Volodymyr Zelensky said on his Telegram account, posting images of destruction he said were akin to the "terrible times" of World War Two.
'Cruel and senseless war'
Implicitly criticising Russia, Pope Francis pleaded for an end to the bloodshed and lamented the 'Easter of War' during his address in St Peter's Square.
"May there be peace for war-torn Ukraine, so sorely tried by the violence and destruction of the cruel and senseless war into which it was dragged," he said.
Mr Zelensky accused Russia yesterday of "deliberately trying to destroy everyone" in Mariupol and said his government was in touch with the defenders.
The Azovstal steelworks, one of Europe's biggest metallurgical plants with a maze of rail tracks and blast furnaces, has become a last stand for the outnumbered defenders.
"All who lay down their arms are guaranteed that their lives will be spared," Russia's Defence Ministry said.
It was not known how many soldiers were in the steelworks. Satellite images have shown smoke and fire coming from the area, which has tunnels throughout. Mr Zelensky has said killing his troops would put paid to peace efforts.
Russia said Ukraine had lost more than 4,000 soldiers in Mariupol as of yesterday. Kyiv says its total troop losses nationwide so far in the war are less than that, between 2,500 and 3,000. Reuters has not been able to verify either side's figures.
Russia calls its action a special military operation to demilitarise Ukraine and eradicate what it calls dangerous nationalists backed by an expansionist NATO military alliance. The West and Kyiv accuse President Vladimir Putin of unprovoked aggression.
There have been on-off negotiations between Ukraine and Russia since the start of the war.
Ukrainian Foreign Minister Dmytro Kuleba said in a CBS News interview today there had not been any recent communications between Russia and Ukraine at a foreign ministry level, and that the situation in Mariupol, which he described as "dire", could be a "red line" in the path of negotiations.
Nationwide attacks
Elsewhere in Ukraine, there were more reports today of Russian strikes around major population centres.
Local media reported an explosion in Kyiv, though deputy mayor Mykola Povoroznyk said air defence systems had thwarted Russian attacks. The mayor of Brovary city, close to Kyiv, said a missile attack had damaged infrastructure.
Russia said it had destroyed an ammunition factory near the capital, according to the RIA news agency.
Shelling in Ukraine's second biggest city, Kharkiv, killed five people and injured 13, Ukrainian public broadcaster Suspilne reported. A Reuters correspondent in Kharkiv heard multiple explosions in quick succession and saw debris from missiles.
As cleanup operations continued in areas where the Russians have retreated, Ukraine's human rights ombudswoman said almost all high-rise buildings in the town of Okhtyrka were unfit for occupation. The State Emergencies Service said 41 bodies had been recovered in the town of Borodyanka.
Most Ukrainians celebrate Orthodox Easter next Sunday, with today marking Palm Sunday. In Bucha, a town north of Kyiv where Ukraine accuses Russia of killing dozens of civilians, some 50 people attended a church service, carrying pussy willow and praying for the dead.
Russia denies targeting civilians and has called images from Bucha fake.
"I just prayed today to stop crying," said resident Evgeniya Lebedko after the service. "We have survived these horrors and we are constantly crying. And I don't want those tears to fall but I go out every day and I smell it and I cry all the time."
Despite the desperate situation in Mariupol, Ukraine said it was holding off Russian forces in other parts of the Donbas regions of Donetsk and Luhansk, which before the invasion were already partly controlled by Russian-backed separatists.
Today, police in Donetsk region said that over the past 24 hours, Russian forces opened fire from tanks, multiple rocket launchers and heavy artillery on 13 settlements under Ukrainian control, killing two civilians.
Luhansk governor Sehriy Gaidai said that since the start of the war, all but 20,000 of acting capital Sievierodonetsk's 130,000 residents had left the city. Shelling of the town of Zolote today killed at least two people, he added.
