Russian missile and drone attacks on Kyiv kill at least nine people, with another 77 injured.
It's the deadliest Russian attack on the Ukrainian capital since July - attacks on other parts of the country involved 11 ballistic missiles, 55 cruise missiles, and 145 drones.
Ukraine's President Zelensky cancels part of his trip to South Africa in response, although he will still meet President Ramaphosa.
Earlier, US President Donald Trump criticised Zelensky's approach to peace talks.
After Zelensky insisted that Ukraine would not accept Russia's occupation of Crimea, Trump said the comments were "very harmful to the peace negotiations".
"He can have peace or he can fight for another three years before losing the whole country," Trump added. "The statement made by Zelensky today will do nothing but prolong the killing field.