An apparent Russian airstrike aimed at Kyiv's main television tower killed five people on Tuesday, officials said, knocking out some broadcasts but leaving the structure intact.
After a blast sounded around the city and smoke was seen rising in the Babi Yar district, the emergencies service said five people were also injured in the attack.
Ukrainian officials released footage of charred bodies and cars damaged by the strike, which came during a surge of Russian attacks on Ukraine's second city of Kharkiv.
"To the world: what is the point of saying 'never again' for 80 years, if the world stays silent when a bomb drops on the same site of Babi Yar," Ukrainian leader Volodymyr Zelensky asked in a tweet.
"Once again, these barbarians are murdering the victims of Holocaust!"
The tower is based near the Babi Yar ravine where more than 30,000 were slaughtered by the Nazis during World War II.
The tragedy is commemorated by a memorial statue and is a site of pilgrimage for many Jews.
Ukrainian officials accused Moscow of threatening the memorial.
Kyiv mayor Vitali Klitschko said the attack damaged the tower's transformer substation, which provides it with electricity, as well as some of its hardware.
The interior ministry said that back-up systems would be put into operation to restore programming.
Most Ukrainian channels appeared to be functioning normally about an hour after the strike.
Earlier, Russia's defence ministry said its forces would strike targets in Kyiv used by Ukraine's security service and also communications sites. Source: Reuters
Mr Zelenskyy, who also spoke by phone for 30 minutes with US President Joe Biden on Tuesday, said the artillery barrages on Kharkiv, a city of 1.5 million, amounted to "state terrorism".
In their call, Mr Biden and Mr Zelenskyy discussed how Russia had intensified attacks on sites used by civilians and the U.S. president underscored Washington's economic and security support and humanitarian aid to Kyiv, the White House said.
Earlier, Russia warned Kyiv residents living near security infrastructure to leave their homes.
"This is state terrorism on the part of Russia," said Ukrainian President Volodymyr Zelenskyy, accusing Moscow of committing a "war crime".
Russia has denied targeting civilian infrastructure.
Visiting Estonia on Tuesday, British Prime Minister Boris Johnson called the bombardment of Kharkiv "absolutely sickening" and reminiscent of massacres of civilians in Sarajevo in the 1990s.
"It has that feel to me of an atrocity committed against a civilian centre," he said.
An AFP reporter in Kharkiv, which is in northeast Ukraine near the Russian border, saw rescue workers carrying a body out of the government building.
Strategic win along Azov Sea
The International Criminal Court has already opened a war crimes investigation against Russia since Moscow began its invasion on Thursday.
Ukraine says more than 350 civilians, including 14 children, have been killed in the conflict so far.
New Delhi said an Indian student was among the victims, killed by shelling in Kharkiv.
There was no breakthrough in initial talks between Russia and Ukraine Monday and Russian forces have pressed further into the country.
In southern Ukraine, the city of Mariupol on the Azov Sea was left without electricity after bombardment, while Kherson on the Black Sea reported Russian checkpoints encircling the city.
In a key victory for Moscow, Russia's defence ministry said its troops had linked up with the forces of pro-Moscow rebels from eastern Ukraine in a region along the Azov Sea coast.
But Ukrainian forces say that despite incursions by "sabotage groups" into the cities, Russian forces have yet to capture a major settlement.
'Shattered peace in Europe'
During a visit to an airbase in Poland, NATO chief Jens Stoltenberg said Russian President Vladimir Putin had "shattered peace in Europe".
Mr Zelenskyy meanwhile reiterated an urgent appeal for his pro-Western country to be admitted to the European Union.
"Prove you are with us," he told MEPs in a video address to the European Parliament. "Prove you are not abandoning us and you are really Europeans."
More than 660,000 people have already fled abroad, the UN refugee agency said, estimating that a million people are displaced within ex-Soviet Ukraine, which has a population of 44 million.
The UN estimates that up to four million refugees may need help in the coming months and 12 million more will need assistance within the country.
It has asked for $1.7 billion in urgent aid, while the EU pledged 500 million euros.
Russia has defied international bans, boycotts and sanctions to press ahead with an offensive it says is aimed at defending Ukraine's Russian speakers and toppling the leadership.
Defence Minister Sergei Shoigu said Russia would continue "until set goals are achieved".
He vowed to "demilitarise and de-Nazify" Ukraine and protect Russia from a "military threat created by Western countries".
Western powers are planning more sanctions in response, with French Finance Minister Bruno Le Maire saying they would "bring about the collapse of the Russian economy".
Russia's former president Dmitry Medvedev, the deputy head of Russia's Security Council, hit back, warning that "economic wars quite often turned into real ones" in the past.
'Bombing kept us up all night'
Fears are growing of an all-out assault to capture Kyiv - a city of 2.8 million people.
Satellite images provided by US firm Mazar showed a 65-kilometre (40-mile) long build-up of armoured vehicles and artillery north of the city.
Satellite imagery of a large military convoy on the edge of Antonov Airport near Kyiv, 28 February, 2022. Source: AAP / Maxar/DigitalGlobe/Getty Images
Inside Kyiv, makeshift barricades dotted the streets and residents formed long queues outside the few shops that remained open to buy basic essentials.
In the village of Shaika near Kyiv, Natasha, 51, opened a canteen in the local church to feed soldiers and volunteers.
"The shelling and the bombing kept us up all night," she said.
Sanctions hit Russians
Western nations have moved to further isolate Russia, responding with an intensifying diplomatic, economic, cultural and sporting backlash.
US Secretary of State Antony Blinken on Tuesday suggested Russia should be stripped of UN rights council membership.
Germany has already promised arms for Ukraine, while the EU also said it will buy and supply arms to Ukraine, the first such move in its history.
Turkey said it would implement an international treaty to limit ships passing through the Dardanelles and Bosphorus straits, a move requested by Ukraine to block the transit of Russian warships.
Within Russia, sanctions imposed by the West have begun to bite.
Putin announced emergency measures intended to prop up the Russian ruble, including banning Russians from transferring money abroad, after the currency crashed to a record low.
Many ordinary Russians have raced to withdraw cash.
Russian conductor sacked
The response from the world of sports also gathered steam.
Russia was expelled from the World Cup and the country's clubs and national teams suspended from all international football competitions.
The International Olympic Committee on Monday urged sports federations and organisers to exclude Russian and Belarusian athletes and officials from international events.
In the arts, the Munich Philharmonic said it was parting ways with star Russian conductor Valery Gergiev "with immediate effect" after he failed to respond to a request to denounce the invasion.
Russian soprano Anna Netrebko said she was stepping back from performing "until further notice" amid controversy over her pro-Kremlin stance despite her condemnation of the war in Ukraine.
The Cannes Film Festival meanwhile banned Russian delegations from this year's event.
