Ukraine's military said on Tuesday it was working to evacuate all remaining troops from their last stronghold in the besieged port of Mariupol, ceding control of the city to Russia after months of bombardment.
The evacuation of hundreds of fighters, many wounded, to Russian-held towns, likely marked the end of the longest and bloodiest battle of the Ukraine war and a significant defeat for Ukraine. Mariupol is now in ruins after a Russian siege that Ukraine says killed tens of thousands of people in the city.
"The 'Mariupol' garrison has fulfilled its combat mission," the General Staff of Ukraine's Armed Forces said in a statement.
"The supreme military command ordered the commanders of the units stationed at Azovstal to save the lives of the personnel ... Defenders of Mariupol are the heroes of our time," it added.
Ukrainian Deputy Defence Minister Anna Malyar said 53 injured troops from the steelworks were taken to a hospital in the Russian-controlled town of Novoazovsk, some 32 km (20 miles) to the east, while another 211 people were taken to the town of Olenivka, in an area controlled by Russian-backed separatists.
All of the evacuees will be subject to a potential prisoner exchange with Russia, she added.
About 600 troops were believed to have been inside the steel plant. Ukraine's military said efforts were underway to evacuate those still inside.
"We hope that we will be able to save the lives of our guys," Ukrainian President Volodymyr Zelenskyy said in an early morning address. "There are severely wounded ones among them. They're receiving care. Ukraine needs Ukrainian heroes alive."
Reuters saw five buses carrying troops from Azovstal arrive in Novoazovsk late on Monday. In one, marked with Z like many Russian military vehicles in Ukraine, men were stacked on stretchers on three levels. One man was wheeled out, his head tightly wrapped in thick bandages.
Heavy shelling reported
Ukrainian fighters in recent days have driven Russian forces out of the area near Kharkiv, the biggest city in the east, having earlier held the capital Kyiv and its surrounds.
But fierce fighting and shelling continued across a broad area of the country's east.
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Zelenskyy's office said on Tuesday the entire front line around Donetsk is under constant massive shelling, while in the northern region of Chernihiv, a missile strike on the village of Desna killed and wounded an unspecified number of people.
Ukraine's general staff said Russian forces were reinforcing and preparing to renew their offensive near Slovyansk and Drobysheve, southeast of the strategic town of Izyum, having suffered losses elsewhere.
Areas around Kyiv and the western city of Lviv, near the Polish border, have continued to come under Russian attack. A series of explosions struck Lviv early on Tuesday, a Reuters witness said. One missile hit a military facility but there were no casualties, according to Zelenskyy's office.
A village in Russia's western province of Kursk bordering Ukraine came under Ukrainian fire on Tuesday, regional Governor Roman Starovoit said. Three houses and a school were hit but there were no injuries, he said.
Russian border guards returned fire to quell the shooting from large-calibre weapons on the border village of Alekseyevka, Starovoit wrote on messaging app Telegram.
Reuters could not immediately confirm details of battleground accounts.
Moscow calls its nearly three-month-old invasion a "special military operation" to rid Ukraine of fascists, an assertion Kyiv and its Western allies say is a baseless pretext for an unprovoked war.
Putin climbdown over NATO
Zelenskyy planned to speak to German Chancellor Olaf Scholz and French President Emmanuel Macron on Tuesday, his office said.
Russia has faced massive sanctions for its actions in Ukraine, but EU foreign ministers failed on Monday to pressure Hungary to lift its veto of a proposed oil embargo.
German Finance Minister Christian Lindner said he is open to the idea of seizing Russian state assets to finance Ukraine's reconstruction.
McDonald's Corp became one of the biggest global brands to exit Russia, laying out plans to sell all its restaurants after operating in the country for more than 30 years.
Russian President Vladimir Putin appeared on Monday to climb down from threats to retaliate against Sweden and Finland for announcing plans to join the US-led NATO military alliance.
"As far as expansion goes, including new members Finland and Sweden, Russia has no problems with these states - none. And so in this sense, there is no immediate threat to Russia from an expansion to include these countries," Putin said.
The comments appeared to mark a major shift in rhetoric, after years of casting NATO enlargement as a direct threat to Russia's security, including citing it as a justification for the invasion of Ukraine itself.
Putin said NATO enlargement was being used by the United States in an "aggressive" way to aggravate an already difficult global security situation, and that Russia would respond if the alliance moved weapons or troops forward.
Finland and Sweden, both non-aligned throughout the Cold War, say they now want the protection offered by NATO's treaty, under which an attack on any member is an attack on all.
Finland and Sweden's plans, however, hit a snag when NATO member Turkey's president said he would not approve either bid.