As many as 13,000 Ukrainian troops have been killed since Russia's invasion in February, a senior adviser to President Volodymyr Zelensky has said.
"Once they wanted to destroy us with hunger, now -- with darkness and cold," Zelensky said in a video posted on social media. But he added: "We cannot be broken."
The Kyiv municipal administration said water connections had been restored throughout the city, but that about 130,000 residents remain without electricity.
There were unconfirmed reports earlier that Lavrov was ill and visited a Bali hospital for a medical check-up before the two-day summit began on Tuesday. Russia denied the reports.
Zelenskyy said Russia fired at least 85 missiles, “most of them at our energy infrastructure,” and shut down power in many cities.
Ukraine's retaking of Kherson was a significant setback for the Kremlin and the latest in a series of battlefield embarrassments.
That is a change in rhetoric from a man who signed a decree in late September stating "the impossibility of holding talks" with Putin.
Russia has repeatedly carried out missile and drone attacks on Ukrainian power facilities, particularly in recent weeks. Zelenskyy described the attacks on energy infrastructure as a sign of weakness.
Volodymyr Zelensky, the retiree, voted for his namesake in the election. But he is disappointed that the president is not doing more to negotiate an end to the war with Russia.
Zelensky sees 'positive trend' in Israel ties; says Russia used around 400 Iranian drones against Ukraine
Zelensky called on Russia to release from Turkey some 170 cargo ships meant to export Ukrainian grain to African and Asian countries.
The prime minister said the United Kingdom's support for Ukraine would be as strong as ever under his premiership, and President Zelensky could count on his government to stand in continued solidarity
Ukraine's air force said in a statement that Russia had launched "a massive missile attack" targeting "critical infrastructure," hours after air raid sirens blared across the country.
Turkish President had earlier said that Putin appeared to be “much softer and more open to negotiations” on ending the war in Ukraine than in the past.
The southern city is next to the Zaporizhzhia Nuclear Power Plant that is one of the most worrisome flashpoints of the nearly eight-month invasion.
Zelensky described the repeated targeting of energy infrastructure as 'another kind of Russian terrorist attacks'.
"There is a moral imperative to protect the sky over (Ukraine) in order to save our people,"said the Ukrainian Defence Minister.
Following talks with Zelensky, G7 leaders said they would hold Russian President Vladimir Putin to account for the attacks but did not say how.
Zelenskyy's wife, Olena, posted a video showing people sheltering on the stairs of a Kyiv subway station singing a Ukrainian folk song whose lines go "I want to live, to love."
The expected Spain-Portugal bid, which has been in the works for more than three years, previously was made UEFA’s preferred candidate.
Modi expressed his firm conviction that there can be no military solution to the conflict and conveyed India’s readiness to contribute to any peace efforts, the statement said.