As it happened: Kyiv warned of toxic fumes after strike on oil depot
Updates from BBC correspondents in Ukraine: Orla Guerin on the road, Sarah Rainsford in Dnipro, Fergal Keane in Lviv, and Lyse Doucet, Paul Adams, Nick Beake & James Waterhouse in Kyiv
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Edited by Boer Deng
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Watch: Missiles hit Kyiv
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BreakingEU to freeze European assets held by Putin and Lavrov
We've just got some news in: an official for the EU says the bloc has decided to freeze European assets held by Russian President Vladimir Putin and Foreign Minister Sergei Lavrov.
It's unclear however if either man holds significant assets in the EU.
We will bring you more details as we get them.
Breaking57 civilians among 194 Ukrainians killed in Russian invasion - UK
UK Armed Forces Minister James Heappey has told MPs in the House of Commons that 450 Russian soldiers and 194 Ukrainians, including 57 civilians, have been killed since Vladimir Putin's invasion began yesterday.
It is a higher civilian death toll than the reports of 25 fatalities cited by the UN rights council earlier today.
Heappey also said further UK troops were being sent to Nato ally Estonia earlier than planned - and a total of 1,000 troops are on standby to help Ukraine's neighbouring countries handle refugees fleeing the country.
Russia says 200 Ukrainians 'eliminated' in airbase siege
More now on reports that Russian forces have taken control of the key Hostomel airfield near Kyiv.
Some 200 Russian helicopters were involved in the operation at the airfield, also known as Antonov Airport, the Russian Defence Ministry says.
The ministry claimed that 200 troops from Ukraine's special units were killed, adding that there were no Russian losses, according to state news agency RIA Novosti.
We have not yet heard from the Ukrainian military - and the Russian account has not been verified.
The Russian Defence Ministry says: "The success of the landing force was ensured by suppressing all air defence systems near the landing site, full isolation of the area of military action from the air and active radio electronic warfare."
BBC reporter: I woke up at 3am and my family home had been bombed
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BBC's Ukrainian's Olga Malchevska woke up at 03:00 GMT to find out her family's apartment block in Kyiv had been bombed.
She had been struggling to get in touch with her mother, who lives in Kyiv, but was relieved to finally get a message from her.
"She [my mother] had been taking shelter...and luckily she wasn't in our building, which was bombed at night," Olga says.
"Thank god my family were OK... I just can't believe what I'm seeing, that was somewhere I used to live."
She says her mother was glad to be unhurt, as she had managed to shelter in the basement of a relative's home with Olga's sister and their young child.
But it's thought her uncle, who they have been unable to contact, was in the apartment building.
According to the official statements there were no people killed in the building, but 150 people were evacuated, some of them hospitalised amid the difficult conditions.
Olga says her mum had been worrying about neighbours, friends and also the family's cat, as the pet was left in the building overnight.
"It's really strange to speak about the cat when there's a war and people are dying, but if you imagine that people were leaving their homes and thinking they would go for just a couple of hours... and then come back."
Just over 24 hours ago, people had been going about their normal lives, Olga says.
"Even yesterday, my mum, after sounds of bombing and shelling, she was still going to go to her work [as a teacher at a library].
"I was telling her to take shelter somewhere, and she said, 'Come on, don't panic, it's Kyiv, nobody's going to bomb Kyiv.'"
BreakingRussian forces reportedly take control of airfield near Kyiv
The Russian Defence Ministry says its forces have taken control of the key Hostomel airfield near Kyiv, Russia's Interfax news agency reports.
It says 200 Russian helicopters and a landing force were used to seize it. It also says Kyiv is “blocked from the West”.
Watch: 'I am number one target' - Zelensky
President Volodmyr Zelensky has been giving regular addresses to the nation from his office in Kyiv - where he has remained despite the Russian advance on the city.
We just heard him call on European leaders to do more to tackle Russian aggression, and to invite President Putin to negotiate to stop the fighting.
In an earlier address, he told Ukrainians that he feared he is "number one target" for Russian retaliation.
"They want to damage Ukraine politically by destroying the head of state," he said.
You can watch his comments below.
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Zelensky calls on Putin to negotiate
More now from President Volodymyr Zelensky's latest address in the past hour.
Having praised the bravery of Ukrainian troops, Zelensky switches to Russian and issues a direct appeal to Vladimir Putin, calling on him to enter negotiations with his government.
"I would like to address the president of the Russian Federation once again," Zelensky says.
"Fighting is ongoing across all of Ukraine's territory. Let's sit down at the negotiating table to stop the killing of people."
What's the latest?
Things are moving fast in Ukraine. Here's a recap of the latest developments on the ground and internationally:
BreakingFormula 1 cancels Russian Grand Prix
The FIA has announced that it has stripped Russia of the right to host a Formula 1 Grand Prix for the coming season.
In a statement issued on Friday, the organisation said "it is impossible to hold the Russian Grand Prix in the current circumstances".
"The FIA Formula 1 World Championship visits countries all over the world with a positive vision to unite people, bringing nations together," it said.
"We are watching developments in Ukraine with sadness and shock and hope for a swift and peaceful resolution to the current crisis."
On Thursday, one of the sport's most successful drivers, four-time world champion Sebastian Vettel, said he would refuse to compete in the race if it went ahead.
The move comes after the European football governing body, UEFA, announced that it had stripped the Russian city of St Petersburg of the right to host the 2022 Champions League Final.
Student in Kyiv: Neighbours packing, queues at pharmacies, bunkers nearby
Jessica - a Nigerian student in Kyiv - describes the latest scenes in the Ukrainian capital.
"Are you afraid?" she is asked.
"Yes, actually I am...but I have to stay logical."
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BreakingChina backs Russia to resolve Ukraine crisis 'via dialogue'
While Western countries unite against Russia, its neighbour China is less condemnatory.
In a phone call on Friday, China's President Xi Jinping told Vladimir Putin that China supports Russia in efforts to resolve the Ukraine crisis via dialogue, Chinese state television CCTV reports.
The Ukraine-Russia crisis is posing a major challenge for China on many fronts.
The ever-closer diplomatic relationship between Russia and China could be seen at the Winter Games - with Putin coming to Beijing as one of only a handful of world leaders to attend.
Earlier, the Chinese foreign ministry declined to call the Russian offensive an "invasion" (see 10:09 GMT post).
It's all too real now for Ukrainians
Lyse Doucet
Chief International Correspondent, in Kyiv
Unthinkable. Unfathomable.
Many said it couldn’t, wouldn’t, happen. Not in 2022.
For weeks, Western officials analysing the intelligence warned of President Putin’s plan to take Kyiv.
For weeks, I’ve asked Ukrainians in Kyiv about it, and ran it past every foreign and defence minister, every Russia watcher, I met at last weekend’s security conference in Munich.
It just didn’t make sense. Just didn’t add up.
And now, with every hour, Russian forces and fighting come ever closer to Kyiv, the capital.
“This night, a Russian plane was hit right in front of the windows of my house in Kyiv. This is insane,” Ukrainian editor Katerina Sergatskova posted on social media.
A city where Ukrainians tell all of us to “call it Kyiv in Ukrainian, not Kiev in Russian” - a city which feels so European - is now in Moscow’s sights.
“A failure of imagination" is how former British intelligence chief Sir Alex Younger described it, adding "we thought history had changed in 1991” when the Soviet empire collapsed.
A failure too of diplomacy, the threat of sanctions, and our much-vaunted “rules-based international order” which are all too often broken.
Ukrainians taking cover in Kyiv bomb shelters and metro stations as emergency sirens sound, taking to the road to flee for safer cities, or taking up guns, are now imagining the worst.
And it is all too real now.
BreakingZelensky accuses European leaders of inaction and calls for protests
Ukraine's President Volodymyr Zelensky is speaking from his office in Kyiv.
Wearing military fatigues, he accuses European leaders of taking insufficient action to slow the Russian advance.
"The columns of tanks and the air strikes are very similar to what Europe saw a long time ago, during WW2 - something about which it said 'never again'," he says.
"But here it is, again. Now, in 2022. 75 years after WW2 ended."
Zelensky adds it isn't too late to stop Russian "aggression" if European leaders act swiftly, and calls on citizens across the EU to protest and force their governments into more decisive action.
The passengers heading to Kyiv - despite Russian airstrikes
Oleg Karpyak
BBC Ukrainian
I am on an inter-city train from Dnipro in the east, to the capital, Kyiv, in the north.
Most people are trying to get out of Kyiv, not go into it. Some of the carriages are almost empty.
A couple of the passengers told me why they were heading to the capital now, despite Russian airstrikes hitting Kyiv.
Valentyna, a schoolteacher, is travelling with her 12-year-old granddaughter and their cat Bonia.
She says she lives about 80km (50 miles) from Dnipro in Pavlograd, where there is a huge chemical plant. She fears it might be Russia’s next target.
So the family decided to get the child back to her parents in central Kyiv. Later they plan to move on to somewhere else.
Sitting nearby is Ivan Kravchyshyn, a film director.
He had been filming the Ukrainian army fighting Russian forces in the city of Avdiivka, within the partly separatist-controlled eastern Donbas region - declared independent by Moscow this week.
“I can’t hear you well,” he told me, smiling. “I’m almost deaf now after the artillery strikes.”
He says history is unfolding now and he can’t afford to stay away in a safe place.
There has been fighting at Antonov Airport near Kyiv, close to where his family live. After that, he’ll decide where to go next.
“We film directors, writers, artists of all forms, we are the storytellers,” he tells me.
“We are the ones who create reality for people, including Ukrainians, creating what they watch on TV, online, and in cinemas.
"So what this reality will be in future depends on us.”
British Airways owner cancels Moscow bound flights
IAG, the owner of British Airways and the Spanish carrier Iberia, has announced it is rerouting flights away from Russian airspace amid international condemnation of Russia's invasion of Ukraine.
The company's CEO, Luis Gallego, said eastern bound flights have been "very reduced" and noted that "the flights that we are doing now we can re-route, so we can maintain the schedule".
The move comes a day after the UK banned Russian flagship carrier, Aeroflot, from flying over Britain as part of a series of sanctions against Moscow.
In response, Vladimir Putin's regime has banned all UK linked planes from its airspace.
Footage shows missile hitting residential area northwest of Kyiv
Footage, which the BBC has verified, has been uploaded of a missile hitting a residential area in Bucha, northwest of Kyiv.
It comes as Ukraine warns that Russian troops have entered northern parts of the capital.
The view from Dnipro: Fortifications dug to block advance
Sarah Rainsford
BBC Eastern Europe Correspondent
We headed to the central city of Dnipro last night from Donbas in eastern Ukraine, where Russian troops are expected to advance and have been clashing with Ukrainian troops along the front line there.
The front line in Donbas has been pretty fixed for eight years, but Russian forces are now attempting to move forward and take much more territory. Yesterday we heard sporadic explosions throughout the day.
About 7,000 people from Donbas have taken special trains west to relative safety. We also saw lots of cars from Donbas on the roads.
As we passed one significant town, Pavlograd, we saw soldiers and workmen with heavy machinery building a massive checkpoint. They were laying big concrete blocks and putting down sandbags and preparing to fortify that city in an attempt to stop any Russian advance westwards across the country.
Dnipro is a strategic city on the Dnieper river. There has been fighting to the south of here and also to the north in the city of Kharkiv. People are worried about what the future holds.
Watch: Military vehicles skid into northern suburb of Kyiv
As we reported earlier, military vehicles have been seen entering a northern suburb in Ukraine's capital, Kyiv.
The BBC has confirmed the social media footage shows Obolon and attempts have been made to clear its copyright.
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Lavrov meets Russian-backed separatists
Russia's foreign ministry earlier put out this video, showing Foreign Minister Lavrov meeting representatives from the two key regions in Ukraine held by Russian-backed separatists.
The self-proclaimed Donetsk People's Republic and Luhansk People's Republic are in the east of the country.
Putin's decision to recognise them as independent states came before the full invasion of Ukraine.