Artillery shells rained down on Nikopol, a city near Zaporizhzhia. Picture used for illustrative purposes only.
Artillery shells rained down on Nikopol, a city near Zaporizhzhia — Europe's biggest nuclear plant, while missiles struck near the Black Sea port of Odesa over the weekend.
Zelensky has called for vigilance, saying Moscow could try "something particularly ugly" ahead of Wednesday, which marks Ukraine's Independence Day and also half a year since Russia invaded Ukraine on Feb. 24.
Zelensky said he had discussed "all the threats" with French President Emmanuel Macron and word had also been sent to other leaders including Turkish President Tayyip Erdogan and UN Secretary-General Antonio Guterres.
"All of Ukraine's partners have been informed about what the terrorist state can prepare for this week," Zelensky said in his nightly video address, referring to Russia.
Ukrainian President Volodymyr Zelensky (centre) attends joint press conference in Lviv, Ukraine, on Thursday. AP
He also said if Russia went ahead with plans to try captured Ukrainian defenders in Mariupol, then it would have violated international rules and cut itself off from negotiations.
"If this despicable show trial were to go ahead... this would be the line beyond which negotiations are no longer possible," he said. "There will be no more conversations. Our state has said everything."
The Financial Times, in an article published Sunday, quoted Gennady Gatilov, Moscow's ambassador to the United Nations in Geneva, as saying Erdogan had tried to facilitate dialogue.
But he dismissed speculation about talks between Zelensky and Russian President Vladimir Putin, saying there "was not any practical platform for having this meeting", the report said.
Ukrainians get ready to celebrate their mark 31 years of independence from Soviet rule on Wednesday.
In Russia, authorities are investigating a suspected car bomb attack outside Moscow that killed the daughter of Alexander Dugin, an ultra-nationalist Russian ideologue who advocates Russia absorbing Ukraine.
While investigators said they were considering "all versions" when it came to establishing who was responsible, the Russian Foreign Ministry speculated there could be a link to Ukraine, something a Zelenskiy adviser dismissed.
"Ukraine, of course, had nothing to do with this because we are not a criminal state, like the Russian Federation, and moreover we are not a terrorist state," Mykhailo Podolyak said on Ukrainian TV.
Russia said on Sunday that its Kalibr missiles had destroyed an ammunition depot containing missiles for US-made HIMARS rockets in Ukraine's southeastern Odesa region, home to ports critical to a UN-brokered plan to help Ukrainian agricultural exports reach world markets again.
Kyiv said a granary had been hit.
Reuters was not able to independently verify the battlefield reports.
Several European leaders have made efforts to show solidarity with the battle-scarred nation. Zelensky thanked the leaders of Britain and Austria for their visits Saturday to Kyiv, Ukraine's capital, and pledges of further support.
Since Russia invaded Ukraine on Feb. 24, Moscow has said it does not target the civilian population. The Kremlin said on Thursday that Kyiv could "end the suffering" of its population by meeting Russia's demands.
Ukraine's General Staff said on Wednesday its forces had repelled six Russian attacks in the past 24 hours in the eastern Donbas region, while Russian artillery had relentlessly shelled the right bank of the Dnipro River and Kherson city further south.
The United States vetoed a UN Security Council resolution on Tuesday that called for an immediate ceasefire in Gaza, drawing stern criticism from allies as President Joe Biden faces mounting pressure to temper support for Israel.
Two friends in western France have built a 16-metre high replica of the Eiffel Tower from recycled wood, which they hope to display along the path of the Summer 2024 Olympic torch relay and on Olympic sites.
The vote in the 15-member Security Council was 13-1 with the United Kingdom abstaining. The United States circulated a rival UNSC resolution that would support a temporary cease-fire in Gaza linked to the release of all hostages, and call for the lifting of all restrictions on the delivery of humanitarian aid.