Ukrainian forces staged their heaviest shelling attack in years in the country's Russian-controlled east on Thursday, Moscow-installed officials said, as both sides ruled out a Christmas truce in the nearly 10-month-old war.
Alexei Kulemzin, the Russian-backed mayor of Donetsk city, said 40 rockets were fired from BM-21 Grad multiple rocket launchers at civilians in the city center in the early hours.
Meanwhile Russian forces kept up shelling and air strikes along the entire eastern front line, killing one person, while two were killed in the southern city of Kherson, Ukrainian officials said.
Moscow and Kyiv are not currently holding talks to end Europe's biggest conflict since World War Two, raging mainly in Ukraine's east and south with little movement on either side.
"The Kremlin... is seeking to turn the conflict into a prolonged armed confrontation," a senior Ukrainian officer, Brigadier General Oleksiy Gromov, told a news briefing on Thursday. He also dismissed the possibility of a truce over the festive period.
On Wednesday, Kremlin spokesman Dmitry Peskov had said a Christmas ceasefire was "not on the agenda."
Kulemzin cast the Donetsk attack as a war crime and said it was the biggest on the city since 2014, when pro-Moscow separatists seized it from Kyiv's control. Preliminary estimates showed five people had been hurt, including a child, he said.
There was no immediate Ukrainian response to his comments.
Ukraine's military General Staff said in its daily report that Moscow's focus remained on the eastern cities of Bakhmut and Avdiivka, adding that Ukrainian forces had repelled Russian attacks in the past 24 hours.
It also said Russian forces continued to strike Ukrainian troops and civilian infrastructure in the Donetsk region and in the southern areas of Zaporizhzhia and Kherson.
"The Russians fired at different areas along the entire front line all night and in the morning," the Ukrainian governor of Donetsk region, Pavlo Kyrylenko, said on the Telegram messaging app, adding there had been two air strikes on Avdiivka.
One person was killed and four injured near Bakhmut, he said, adding: "It is dangerous to stay in the Donetsk region! Evacuate in time!"
Separately, Russian shelling killed two people in the center of Kharkiv, the southern city liberated by Ukraine last month," said Kyrylo Tymoshenko, deputy head of the president's office.
Reuters was unable to immediately verify battlefield accounts from either side.
"(The Russians) are crawling like zombies on our positions in Bakhmut, creating pressure in the south of the Donetsk region," Andriy Yermak, head of the presidential office, wrote on Telegram.
"They understand that if they do not stretch the front now, then this winter will be a disaster for them."
In a move that would significantly bolster Kyiv's air defense, U.S. officials told Reuters a decision on providing the Patriot missile system to the Ukrainian military could be announced as soon as Thursday.
The Kremlin said the United States was getting "deeper and deeper into the conflict in the post-Soviet republic," and that U.S. Patriot systems would be legitimate targets, something that Russia's foreign ministry said on Thursday applied to all weapons supplied to Ukraine by the West.
Asked about the possibility of Ukraine getting the U.S. Patriot systems, British Defence Secretary Ben Wallace said: "It hasn't been confirmed yet but it will show quite how concerned people are by Russia's deliberate targeting of civilian, critical national infrastructure."
The United Nations' High Commissioner for Human Rights, Volker Turk said in a speech to the Rights Council following a visit to Ukraine that Russia's strikes were exposing millions to "extreme hardship."
On Wednesday, Kyiv suffered the first major drone attack in weeks. Two administrative buildings were hit, but air defenses largely repelled the attack. Ukraine's President Volodymyr Zelenskyy said 13 drones had been shot down.
In one snowy Kyiv district, residents said they heard the loud whirring engine of an Iranian Shahed drone followed by a powerful explosion at a building next to their homes.
"I want this all to be over ... For (Russian President Vladimir) Putin, that bastard, to die," said Yana, 39, who had been getting ready for work when the attack took place.
Tens of thousands of people have been killed, millions more displaced and cities reduced to rubble since Russia invaded Ukraine on Feb. 24 in a "special military operation," saying it needed to protect Russian speakers from Ukrainian nationalists. Kyiv and its allies call it an unprovoked war of aggression.
Russia has fired barrages of missiles on Ukraine's energy infrastructure since October, disrupting power supplies and leaving people without heating in freezing winter conditions.
National grid operator Ukrenergo said on Thursday Ukraine continued to suffer a "significant" deficit of electricity due to the strikes, including new ones in the east, adding that the situation was exacerbated by the wintry weather conditions.
European Union member states failed to agree on a ninth package of Russia sanctions in talks late on Wednesday, diplomats said, after Poland called for a tougher stance.
Member states disagree over whether the EU should make it easier for Russian fertilizer exports to pass through European ports to help poorer countries even if the fertilizer companies concerned are owned by blacklisted oligarchs.
Further financial and military aid to Ukraine will feature prominently on the agenda of EU leaders meeting in Brussels for a summit later on Thursday.
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