A spokesperson for Mariupol's mayor says almost 5,000 civilians — including 210 children — have died in Mariupol since Russia's invasion began, with the UN adding weight to the claim, saying there could be "thousands of deaths" in the besieged city.
Look back on the day's updates from Ukraine and surrounds with our daily blog.
Live updates
By Kelsie Iorio
Today's live blog finishes up here
But you can stay up to date on the situation in Ukraine via our World News page, as well as across the ABC News website.
Thanks for joining us.
By Kelsie Iorio
Relatively quiet in Kyiv overnight, deputy mayor reports
Kyiv's deputy mayor says shelling has been heard outside the Ukrainian capital overnight, but the city itself wasn't shelled.
He said it had been a relatively quiet night.
By Kelsie Iorio
These maps are from the United States' Institute for the Study of War
The ISW is a research organisation based in Washington DC.
By Kelsie Iorio
UK says Russian units forced to return to Belarus and Russia for supplies
UK military intelligence has indicated that Russian units suffering heavy losses in Ukraine have been forced to return home and to neighbouring Belarus in an effort to re-organise and resupply.
"Such activity is placing further pressure on Russia's already strained logistics and demonstrates the difficulties Russia is having re-organising its units in forward areas within Ukraine," the UK's defence ministry said.
But the ministry also added that Russia is likely to continue to compensate for its reduced ground manoeuvre capability through mass artillery and missile strikes.
By Kelsie Iorio
Russia 'profoundly fooling themselves', Blinken says
US Secretary of State Antony Blinken says he has not seen "signs of real seriousness" by Russia in pursuing peace after its invasion of Ukraine.
"I have not seen anything that suggests that this is moving forward in an effective way because in Russia, we are really not seeing signs of real seriousness," he told a news conference.
"But, if Ukraine concludes that there is, that's good and we support that."
Mr Blinken also reiterated that Moscow should end its aggression now and pull its forces back.
"I would add that if they somehow believe that an effort to 'subjugate' the eastern part of Ukraine or the southern part of Ukraine can succeed, then once again, they are profoundly fooling themselves," he said.
"We've seen the will and the determination of the Ukrainian people to determine their own future, not to have Russia or anyone else determine it for them."
Reporting by Reuters
By Kelsie Iorio
Governor says residential areas in Lysychansk shelled
Luhansk regional governor Serhiy Gaidai says residential areas of Ukraine's eastern city of Lysychansk have been shelled by heavy artillery.
"A number of high-rise buildings have been damaged. Information on casualties is being confirmed," he wrote on Telegram.
"Many buildings have collapsed. Rescuers are trying to save those still alive."
By Kelsie Iorio
Plenty of upcoming talks
The White House says US President Joe Biden is set to speak to the leaders of France, Germany, Italy and the UK in coming hours to discuss the latest developments in Ukraine.
French President Emmanuel Macron is also scheduled to talk to Russian President Vladimir Putin on Tuesday (local time) too.
It comes after this morning's announcement that Ukrainian President Volodymyr Zelenskyy will directly address the Australian Parliament tomorrow (virtually).
Russian Foreign Minister Sergei Lavrov and US deputy national security adviser for economics Daleep Singh are both preparing to visit India, which has called for a ceasefire but has refused to explicitly condemn Moscow.
Reporting by Reuters
By Kate Ainsworth
In pictures: Mykolaiv in the hours after Russian missile attack
Seven people were killed and at least 22 were wounded after a Russian missile tore through the regional government headquarters in Mykolaiv in southern Ukraine.
Rescue workers have continued sifting through the rubble searching for survivors, while the damage has extended far beyond the targeted government building.
By Kate Ainsworth
US issues new Russia travel warning, warns citizens they may be detained
The US has issued a new travel warning for its citizens travelling to Russia or who are currently in the country, saying US citizens may be singled out and detained by Russian authorities.
The advisory said the warning was due to the "unprovoked and unjustified invasion of Ukraine by Russian military forces" and the potential for US citizens to be harassed by Russian authorities, and urged US citizens residing or travelling in Russia to leave "immediately".
"If you wish to depart Russia, you should make arrangements on your own as soon as possible," the advisory said.
"The US embassy has severe limitations on its ability to assist US citizens, and conditions, including transportation options, may suddenly become even more limited."
By Kate Ainsworth
'The farmers are on the frontlines': UN food chief warns of devastation
Reuters reports that the WFP executive director David Beasley told the UN Security Council that Ukraine had gone "from the breadbasket of the world to breadlines".
"It's not just decimating dynamically Ukraine and the region, but it will have global-context impact beyond anything we've seen since World War II," Mr Beasley said.
He said 50 per cent of the grain bought by the food-assistance branch of the United Nations comes from Ukraine, "so you can only assume the devastation that this is going to have on our operations alone."
"The farmers are on the frontlines," he said.
Mr Beasley said the crisis was compounded by a lack of fertiliser products coming from Belarus and Russia.
"If you don't put fertiliser on the crops, your yield will be at least 50 per cent diminished. So we're looking at what could be a catastrophe on top of a catastrophe in the months ahead," he told the council.
Mr Beasley warned if the conflict in Ukraine was not ended, "the world will pay a mighty price and the last thing we want to be doing as the World Food Programme is taking food from hungry children to give to starving children."
Russia's UN Ambassador Vassily Nebenzia rejected accusations that Moscow's actions in Ukraine had caused the "serious turbulence" in the global food market, instead blaming Western sanctions on Russia.
US Deputy Secretary of State Wendy Sherman told the council sanctions were not fueling the global food crisis.
"The responsibility for waging war on Ukraine, and for the war's effects on global food security, falls solely on President Putin," Ms Sherman said.
The 193-member UN General Assembly has overwhelmingly condemned Russia's "aggression" and demanded it withdraw its troops.
By Kate Ainsworth
US astronaut and Russian cosmonauts to return to Earth together
Reuters is reporting a US astronaut and two cosmonauts from Russia will depart the International Space Station and return to Earth together in a Soyuz capsule, despite heightened tensions between the two countries over the war in Ukraine.
The Russian Soyuz capsule carrying NASA's Mark Vande Hei and Russian cosmonauts Anton Shkaplerov and Pyotr Dubrov is scheduled to depart the ISS at 2.45am EDT (5.45pm AEDT) before landing in central Kazakhstan around five hours later.
The landing zone lies roughly 400 kilometres north-east of Russia's space launch facility at the Baikonur Cosmodrome in Kazakhstan.
By Kate Ainsworth
How fleeing Mariupol made Ukrainians re-evaluate their lives
Just two streets away from her home on the outskirts of Mariupol an old woman was killed and a child's arm was blown off.
"I understood we had to leave our house immediately," she said.
Irina, 51, grabbed her 14-year-old son and fled to a friend's place close to the city centre.
But this was only the beginning. They had no idea of the horrors that were yet to come.
Once a city of 400,000 people, thousands are now dead and about 65,000 have attempted to escape, often driving through mined streets in Russian-occupied territories or even fleeing on foot.
Of those who have managed to reach safety, many are sharing their stories.
By Kate Ainsworth
In pictures: On the ground in Kyiv
The Ukrainian capital has been a key target for Russian forces since starting its invasion.
Russian forces say they have begun retreating from Kyiv, but Ukrainian troops remain on high alert in a city that has been relentlessly attacked.
By Kate Ainsworth
Russian oligarch attends peace talks between Russia and Ukraine
Russian billionaire Roman Abramovich, who is sanctioned by Western nations over Moscow's invasion of Ukraine, attended the latest direct peace talks between Russian and Ukrainian negotiators in Istanbul yesterday.
Reuters reported the two countries sat facing each other in the presidential office, with the Russian oligarch sat in the front row of observers.
Yesterday the Wall Street Journal and investigative outlet Bellingcat reported that Mr Abramovich and two Ukrainian diplomats experienced suspected poisoning symptoms after attending a meeting between the two countries earlier this month.
Ukraine dismissed the reports as "speculation", however the White House has confirmed it is looking into the allegations.
Moscow said Mr Abramovich was not formally negotiating at the meeting yesterday, but his presence was as a "go-between" with approval from the Ukrainian side.
According to Reuters, Mr Abramovich showed no signs of the suspected poisoning.
By Kate Ainsworth
Ukraine's first lady may be on a Russian hit list but she refuses to flee
On a video call with other European leaders, he signed off with a haunting farewell.
"This may be the last time you see me alive," he said, according to sources who spoke to the Wall Street Journal.
He had good reason to believe his life was in danger.
A chilling picture was emerging from Western intelligence agencies about Russia's plans for Ukraine's young leader, which he shared with his people in a video he shot on the streets of Kyiv.
"The enemy has marked me as target number one, my family as target number two," Mr Zelenskyy said, dressed in khaki and flanked by his officials.
Despite the threat, Mr Zelenskyy reportedly declined an offer from the US for help in evacuating, instead vowing to stay with his people.
His wife, Olena Zelenska, their 17-year-old daughter Sasha and nine-year-old son Kyrylo have also stayed put, even though they may be second on Russia's hit list.
"I will not have panic and tears," Ms Zelenska wrote on Instagram shortly after the invasion.
"I will be calm and confident.
"My children are looking at me, I will be next to them and next to my husband and with you."
By Kate Ainsworth
Ukraine ambassador tells UN Security Council 'demilitarisation of Russia' is underway
Ukraine's ambassador to the UN Sergiy Kyslytsya has told the UN Security Council that "the demilitarisation of Russia is underway", the Associated Press is reporting.
Since the beginning of the invasion, Mr Kyslytsya said the Russian occupiers had lost more than 17,000 military personnel, over 1,700 armoured vehicles and almost 600 tanks.
He also said Russia has lost 300 artillery systems, 127 planes and 129 helicopters, almost 100 rocket launchers, 54 air defence systems and seven ships.
Mr Kyslytsya said that was “an unprecedented blow to Moscow, where the numbers of Soviet losses in Afghanistan pale in comparison.”
The figures cannot be independently verified.
Earlier, Russia announced it would significantly scale back military operations near Kyiv and Chernihiv as negotiations between Ukrainian and Russian delegates were held in Istanbul.
A second round of talks are expected to resume in Turkey later today.
By Kate Ainsworth
Russian forces have failed to encircle Kyiv, UK intelligence says
Ongoing setbacks by Russian forces and successful attacks by Ukrainian troops mean Russia is unlikely to completely surround Kyiv, the UK's Ministry of Defence says.
The ministry said it appears Russia has accepted it is on the back foot in the Ukrainian capital, and is now likely to shift its focus to the eastern regions of Donetsk and Luhansk.
By Kate Ainsworth
Twitter bot network amplifying Russian disinformation about Ukraine war, researcher says
An army of automated Twitter accounts, or bots, stood ready to promote these posts and game the platform: liking tweets pushing pro-Russian justifications for the war ranging from "denazification", stopping genocide, or shutting down bioweapons labs.
Within a week, Twitter had banned about 100 of these accounts for "coordinated inauthentic activity".
Now, QUT disinformation expert Tim Graham says he has found a much larger number hiding in plain sight.
Some without profile photos have names like "yes_imabot".
More than 800 accounts are almost certainly bot accounts, while thousands more are highly likely to be.
"I had the sense Twitter had mostly solved the worst extent of bot activity on their platform, especially for political bots," Dr Graham said.
"I was shocked to find massive bot networks that are liking this Russian disinformation."
Read the full story from technology reporter James Purtill here.
By Kate Ainsworth
In pictures: Ukrainians finding safety in Poland
The UN estimates more than 3.9 million Ukrainians have fled the country since Russia's assault began last month, with over 2.3 million travelling to Poland.
These images captured by Reuters photographer Hannah McKay show Ukrainian refugees waiting for a bus to depart from a temporary shelter in Przemysl, on the Polish-Ukrainian border.
