Members of delegations from Ukraine and Russia hold talks in Belarus' Gomel region on Monday. AFP
The attacks took place while Russian and Ukrainian officials met on the Belarusian border to discuss a ceasefire. The talks ended with no breakthrough.
"The Russian side, unfortunately, still has a very biased view of the destructive processes it has launched," Ukrainian presidential adviser Mykhailo Podolyak said on Twitter after attending the talks near the Belarusian border.
Russia also faced deepening isolation and economic turmoil as Western nations, united in condemnation of its assault, hit it with an array of sanctions that created ripple effects around the world.
Global shares slid and oil prices jumped. But Russian President Vladimir Putin showed no sign he was reconsidering the invasion he unleashed on Russia's western neighbour last Thursday. He dismissed the West as an "empire of lies" and replied to the new sanctions with moves to shore up Russia's crumbling rouble currency.
Fighting also occurred throughout the night around the port city of Mariupol.
The Russian invasion — the biggest assault on a European state since World War Two - has failed to make the decisive early gains that Putin would have hoped for. But Kharkiv in Ukraine's northeast has become a major battleground.
Regional administration chief Oleg Synegubov said Russian artillery had pounded residential districts even though no Ukrainian army positions or strategic infrastructure were there. At least 11 people had been killed, he said.
"This is happening in the daytime, when people have gone out to the pharmacy, for groceries, or for drinking water. It's a crime," he said.
Earlier Interior Ministry adviser Anton Herashchenko said Russian rocket strikes on Kharkiv on Monday had killed dozens of people. It was not possible to independently verify the casualty figures.
Video posted by the military showed thick columns of smoke rising from apartment blocks and flashes of flames.
Moscow's United Nations ambassador, speaking in New York, said the Russian army did not pose a threat to civilians.
Fighting also occurred throughout the night around the port city of Mariupol, the head of the Donetsk regional administration, Pavlo Kyrylenko, said. He did not say whether Russian forces had gained or lost ground.
Russian forces seized two small cities in southeastern Ukraine and the area around a nuclear power plant, according to the Interfax news agency.
The capital Kyiv remained under Ukrainian government control, with President Volodymyr Zelenskiy, dressed in military gear, encouraging his people with a series of defiant messages.
Explosions were heard in the city before dawn and Ukrainians set up checkpoints and blocked streets with piles of sandbags and tyres as they waited to take on Russian soldiers.
On Kyiv's streets, signboards normally used for traffic alerts showed the message: "Putin lost the war. The whole world is with Ukraine."
TALKS ON BORDER
Talks between the two sides took place on the border with strong Russian ally Belarus - a launch pad for invading Russian troops.
Ukraine had said it wanted to secure an immediate ceasefire and the withdrawal of Russian forces. The Kremlin declined to comment on Moscow's goals.
The head of the Russian delegation speaks to the media. (R) The Ukrainian delegation arrives in Gomel region. AP
The meeting ended with officials heading back to their respective capitals for further consultations before a second round of negotiations, RIA news agency quoted Ukrainian presidential adviser Mykhailo Podolyak as saying.
Russia calls its actions in Ukraine a "special operation" that it says is not designed to occupy territory but to destroy its southern neighbour's military capabilities and capture what it regards as dangerous nationalists.
The Western-led response has been emphatic, with sanctions that effectively cut off Moscow's major financial institutions from Western markets. The rouble plunged 32% against the dollar on Monday before recouping about half of its losses. Countries also stepped up weapons supplies to Ukraine.
In Brussels, European Union foreign policy chief Josep Borrell said EU sanctions would have a cost for Europe "but we have to be ready to pay the price, or we will have to pay a much higher price in the future."
The EU will provide intelligence to Ukraine about Russian troop movements and EU countries are determined to increase their military support to Kyiv, Borrell said.
France said President Emmanuel Macron spoke to Putin on Monday and urged an immediate ceasefire and an end to attacks on civilians and infrastructure.
BATTLE FOR CITIES
The Ukrainian military said Russian forces were also focusing on Chernihiv, northeast of Kyiv, and parts of the Donetsk region in the east. Separatists there raised a Russian flag on a local administration building in one shattered village on Sunday, Reuters footage showed.
UN human rights chief Michelle Bachelet said at least 102 civilians in Ukraine have been killed since Thursday but the real figure is feared to be "considerably higher."
Ukraine's health ministry said on Sunday 352 civilians, including 14 children, had been killed since the beginning of the invasion.
More than half a million people have fled to neighbouring countries, according to the United Nations refugee agency.
Partners in the US-led Nato defence alliance were providing Ukraine with air-defence missiles and anti-tank weapons, NATO chief Jens Stoltenberg said.
The Kremlin accused the EU of hostile behaviour, saying weapons supplies to Ukraine were destabilising and proved that Russia was right in its efforts to demilitarise its neighbour.
The Kremlin declined to comment on whether there was a risk of confrontation between Russia and Nato. Russia has demanded that Nato never admit Ukraine as a member.
Ukraine dismissed Moscow's offer to set up humanitarian corridors from several bombarded cities on Monday after it emerged some routes would lead refugees into Russia or Belarus.
Shabia Mantoo, a UNHCR spokeswoman, said the latest and still growing count had 281,000 in Poland, more than 84,500 in Hungary, about 36,400 in Moldova, over 32,500 in Romania and about 30,000 in Slovakia.
Governor Dmytro Zhyvytskyy posted photographs of the charred shell of a four-story building and rescuers searching rubble. In a later Facebook post, he said many Russian soldiers and some local residents also were killed during the fighting on Sunday.
Kathy Lueders, who heads the agency's human spaceflight program, told reporters on a call that operations on the research platform were proceeding "nominally" and "we're not getting any indications at a working level that our counterparts are not committed."
The Roads and Transport Authority said on Twitter, “RTA announced the timings of its services during the holiday marking Commemoration Day and the UAE 51st National Day.
He also affirmed that the gesture also reflects one of the UAE’s key national values of tolerance.
His Highness Dr Sheikh Sultan Bin Mohammed Al Qasimi, Supreme Council Member and Ruler of Sharjah, has pardoned 333 prisoners from Punitive and Correctional Institution in Sharjah ahead of 51st UAE National Day.