Ukraine accused the Kremlin of "nuclear terror" and the West expressed fury on Friday after Europe's largest atomic power plant was attacked and seized by invading Russian forces, which continued to shell major cities.
Fighting and a fire at the Zaporizhzhia plant triggered an emergency United Nations (UN) Security Council meeting, after which President Vladimir Putin said Moscow was ready for talks – if all Russia's demands were first met.
The six reactors at Zaporizhzhia, which can power four million homes, were apparently undamaged by the fire in a training facility. Monitors reported no spike in radiation.
But the attack killed three Ukrainian soldiers, according to Kyiv's nuclear operator Energoatom, and was furiously condemned by Western capitals, NATO and environmental groups as utterly irresponsible.
"We survived a night that could have stopped the story, the history of Ukraine, the history of Europe," Ukrainian President Volodymr Zelensky said.
An explosion at Zaporizhzhia would have equalled "six Chernobyls", he said, referring to the plant in Ukraine that was the site of the world's worst nuclear disaster in 1986.
"Russian tank commanders knew what they were firing at," Zelensky alleged, adding: "The terrorist state now resorted to nuclear terror."
'Reckless Actions'
Russian defence ministry spokesman Igor Konashenkov claimed the attack on Zaporizhzhia was staged by "Ukrainian sabotage groups, with the participation of foreign mercenaries".
"This shows the Kyiv regime's criminal plan," he alleged, adding that the plant had been secured by Russian troops and was functioning normally.
After phoning Zelensky during the night, British Prime Minister Boris Johnson accused Putin of "reckless actions" that could "threaten the safety of all of Europe".
At the urging of Johnson and Western allies, the UN Security Council was convening after the attack, although Russia's veto on the world body would limit any concerted condemnation.
"We are faced together with what is President Putin's war of choice, unprovoked, unjustified, and a war that is having horrific, horrific consequences," United States (US) Secretary of State Antony Blinken said in Brussels.
"We're committed to doing everything we can to make it stop."
But Putin has been unmoved as Russia has become an economic, sporting and cultural pariah.
The Kremlin said that Putin, in a call with Belarusian President Alexander Lukashenko Friday, restated that "the tasks set for the (Ukraine) operations are going according to plan and will be fulfilled in their entirety".
Kremlin spokesman Dmitry Peskov called on Russians "to unite around our president", after thousands braved mass arrests at anti-war demonstrations this week.
Authorities have imposed a news blackout and two liberal media groups have halted operations. On Friday, Facebook and multiple media websites, including the BBC, were partially inaccessible in Russia.
The BBC also said it was temporarily suspending the work of its journalists in Russia after Russian lawmakers approved legislation to impose fines and jail terms of up to 15 years for anyone publishing "fake news" about the army.
Independent Russian newspaper Novaya Gazeta said Friday it would be removing Ukraine content on Friday in the wake of the new law.
Western social media companies "carry hatred and lies" against Russia, parliament chairman Vyacheslav Volodin said.
'Like Aleppo'
Russia has intensified strikes across Ukraine with fresh reports of civilian casualties and devastating damage, particularly in southern areas near Kherson, the first city to fall to Moscow's troops.
In a second round of talks held Thursday, Moscow agreed to a Ukrainian request for humanitarian corridors to allow terrified residents to flee.
But there was no clarity on how the corridors would work, and no sign of any move towards a ceasefire.
Ahead of a third round of talks this weekend, Zelensky urged the West to step up military assistance and to "give me planes". He also called for direct talks with Putin.
NATO, fearful of provoking its own war with nuclear-armed Russia, again ruled out enforcing a no-fly zone over Ukraine. And the Kremlin rejected direct talks, insisting any contact should come via negotiators.
Ukrainian leaders warn that Russia – given signs its offensive on the capital Kyiv has stalled – is bent on reprising the horrific tactics it used to level the Syrian city of Aleppo in 2016.
The port city of Mariupol, east of Kherson, is cut off without water or electricity in the depths of winter, but Putin has denied bombing Ukrainian cities.
Mariupol's deputy mayor Sergei Orlov told BBC radio that its humanitarian situation was "terrible" after 40 hours of continuous shelling of sites including schools and hospitals.
"Today Putin style of war is like Aleppo. So, Mariupol goes to Aleppo," Orlov said in English.
"I believe that he wants to destroy Ukraine as a nation, and Mariupol is on this way."
In the northern city of Chernihiv, 47 people died Thursday when Russian forces bombed residential areas, including schools and a high-rise apartment block, according to a new toll given by local officials.
According to the UN, at least 331 civilians have died since Russia invaded in the night of 24 February, purportedly to erase a Western-leaning, "Nazi" threat on its borders.
Ukraine says it has killed thousands of Russian troops. Moscow on Wednesday said it had lost 498 soldiers.
'Whole World Against You'
Ukraine authorities say residential parts of the eastern city of Kharkiv have also come under indiscriminate shelling, which UN prosecutors at The Hague are investigating as a possible war crime.
Ukraine's Foreign Minister Dmytro Kuleba demanded a special tribunal, alleging there were "numerous cases of, unfortunately, when Russian soldiers rape women in the Ukrainian cities".
In Geneva, the UN Human Rights Council overwhelmingly voted to create a top-level investigation into violations committed in the invasion.
"The message to Putin has been clear: you're isolated on a global level and the whole world is against you," Ukrainian ambassador Yevheniia Filipenko said after the vote.
The UN says more than 1.2 million refugees have flooded into neighbouring countries from Ukraine.
Both the EU and Washington said they would approve temporary protection for all refugees fleeing the war, while Brussels' Commission Vice-President Maros Sefcovic said he wanted Ukraine to join the bloc "as soon as possible".
The conflict is also driving some Russians to flee their country, fearful it is their last chance to escape the economic pain from ever-tougher Western sanctions, or the Kremlin crackdown on domestic dissent.
On one of the few remaining routes from Russia to the EU, trains from Saint Petersburg to Finland, have been packed with Russians.
Nor is it just people fleeing.
Six lions and six tigers evacuated from a shelter near Kyiv arrived at a zoo in Poland, following a two-day journey through combat zones.