Russia, unsurprisingly, has vetoed a draft UN resolution which would have deplored its invasion of Ukraine, after a debate at the Security Council.

Eleven members voted in favour of the resolution. India, China and the UAE abstained.

The resolution was doomed to fail because of Russia's veto power as a permanent member of the UN Security Council.

During the debate, the US ambassador to the UN said the body had been created to try to prevent the kind of aggression facing Ukraine.

Image source, EPA

More on that late-night address from Ukraine's president. Zelensky hailed his countrymen for enduring "a hard, but a courageous day".

"We cannot afford losing the capital," said the president.

"Our main goal is to finish this bloodbath," he added.

While Zelensky acknowledged Russian forces had inflicted casualties on Ukrainian troops, he maintained "the enemy has sustained very serious casualties", too. The BBC cannot verify this claim.

"Ukrainians are heroically resisting this aggression which cannot be justified," he continued.

"That's why the occupants are forced to come up with even more absurd accusations."

Russian President Vladimir Putin has referred to Zelensky and his leadership team as "a band of drug addicts and neo-Nazis".

But Zelensky said his citizens and the rest of the world did not believe what he described as lies by the Kremlin.

Then, switching to Russian, Zelensky added: "The citizens of the Russian Federation won't believe them."

Image source, Reuters

The UK has just banned Russian private jets from its airspace, after announcing on Thursday that Russia's national carrier Aeroflot would also be banned. Russia responded on Friday by banning British airlines.

Other countries, too, have banned Russian air traffic. Bulgaria says no Russian planes can enter its airspace from Saturday, and Poland and the Czech Republic have made similar moves.

Russian airline S7 - one of the country's largest - has cancelled all flights to Europe until 13 March because of the airspace closures.

US airline Delta has suspended its partnership with Aeroflot.

Image source, Getty Images

In a dramatic late-night appearance, Ukrainian President Volodymyr Zelensky warned in a video statement that the Russians would storm Kyiv in the coming hours.

“This night will be hard, very hard, but morning will come," he said.

“This night the enemy will be using all available means to break our resistance. This night they will launch an assault.

“This night we must persevere. The fate of Ukraine is being decided right now.”

Image source, Getty Images

A draft resolution being debated by the UN Security Council has just undergone some last-minute changes, the BBC understands.

Instead of “condemning in the strongest terms” Russia’s invasion, it now “deplores in the strongest terms” the attacks.

The latest draft also demands the immediate, complete and unconditional withdrawal of all Russian forces from Ukraine.

A senior Security Council diplomat said negotiations came down to China. Diplomats are trying to persuade Beijing to abstain rather than vote against the resolution.

The UN charter says nine votes are needed on the 15-member panel for a resolution to pass. However, the five permanent members - the US, UK, France, Russia and China - all have veto power.

Image source, Getty Images

For the second night in a row, thousands of Georgians have turned out in the capital Tblisi to protest against the Russian invasion of Ukraine.

Russia invaded Georgia in 2008 to aid pro-Russia separatist forces. Experts have drawn many parallels between that conflict and the one currently unfurling in Ukraine.

Some members of the crowd - estimated at 30,000 - chanted slogans against the current Georgian government, after the ruling party said it would not join the Western sanctions on Russia.

“I want to state clearly and unambiguously, considering our national interests and interests of the people, Georgia does not plan to participate in the financial and economic sanctions, as this would only damage our country and populace more,” the country's Prime Minister Irakli Garibashvili said earlier on Friday.

The protesters said the PM's move represented a cowardly abandonment of the Ukrainian people.

Image source, Getty Images

Russia's defence ministry says troops have entered the Ukrainian city of Melitopol without resistance, reports Russian news agency Tass.

The BBC cannot independently verify the claim, but Ukrainian President Volodymyr Zelensky said earlier there was heavy fighting in the city.

Melitopol, a city of around 150,000 people, is in Ukraine's south-east, close to Crimea and the Sea of Azov.

Image source, Getty Images

Canadian Prime Minister Justin Trudeau has just announced the country will join the US, UK and EU in levying sanctions against Russian President Putin and Foreign Minister Sergei Lavrov.

Speaking at a news conference in Ottawa's Parliament Hill, he said that Putin's “own personal wealth... is at significant risk because of his terrible mistake".

"We will be imposing sanctions on President Putin and his fellow architects of this barbaric war," he said, adding that sanctions will also be placed on the leaders of Belarus due to their support for Russia's invasion.

White House press secretary Jen Psaki has just had a back and forth with her old sparring partner, Peter Doocy of Fox News, when he asked her what exactly President Biden has done that "has worked" to stop Vladimir Putin.

Doocy also asked whether the people of Ukraine "have a month" to see the results of sanctions.

He was alluding to Biden's remark on Thursday about US sanctions: "Let’s have a conversation in another month or so to see if they’re working."

Psaki told Doocy: "Well, Peter, let me take a step back and explain to everyone how diplomacy works.

"What the president has done is build a global coalition in the face of President Putin and President Putin's aggression and invasion of Ukraine," she added.

Psaki said Biden had "rallied" the world and European partners - "even at cost to them" - to place significant sanctions that she said would have an "enormous" impact on the Russian financial sector.

Ukraine has denied reports that it rebuffed a Russian offer to explore peace talks.

The Ukrainian president's spokesman, Serhiy Nykyforov, said on Facebook: "I have to deny statements that we have refused to hold talks.

"Ukraine was and remains ready to talk about the end to fighting and about peace. This is our unchanged position.

"We agreed to the offer by the Russian president. Right at this moment, the sides are consulting on the place and time of holding the negotiating process.

"The sooner the talks begin, the more chances there will be to restore normal life."

A spokesman for Ukrainian President Zelensky has just said the country is prepared to hold ceasefire and peace talks with Russia immediately.

He said Russian and Ukrainian officials are currently discussing a time and place for talks to be held.

Russia has said they will only talk when the entire Ukrainian armed forces surrender.

Ukraine's President Volodymyr Zelensky has vowed to defend his country's independence in the face of the Russian invasion.

In a video posted on his Facebook page on Friday evening, he sought to make clear he and his top officials and advisers remain in Kyiv.

White House press secretary Jen Psaki says banning Russia from the Swift payment system remains an option.

"We've never taken that off the table and I'm certainly not taking it off the table today," she said.

Swift allows the smooth and rapid transfer of money across borders and links 11,000 banks and institutions in more than 200 countries.

Read more: What is Swift and why are leaders divided on banning Russia?

Psaki was also asked about what conversations have taken place with China regarding the situation in Ukraine.

She responded by saying it's not a time for "equivocation or hiding or waiting to see what happens next".

When asked whether China was equivocating, Psaki responded by saying that "every country should think about what side of history they want to be on".

Image source, Getty Images

Verified video appears to show fighting in the southern Ukrainian city of Melitopol.

Reports say the footage shows the cancer treatment department of a hospital being hit by an explosive.

Though the embedded tweet below blames "the occupiers", it is not confirmed who fired the weapon.

Multiple explosions have just been heard in Kyiv, where air raid sirens are currently blaring throughout the capital.

Unconfirmed reports indicate between three and five large blasts in the vicinity of the Ukrainian capital.

As the sirens and explosions sounded in Kyiv, local Pryamyy TV interrupted programming with the message: "We will be back after the air raid warning is over." See the screenshot below.

Explosions have also reportedly been heard in Donetsk, the breakaway region in eastern Ukraine.

Image source, BBC News

The White House has announced the US plans to join the European Union and UK in sanctioning Russian President Vladimir Putin and Foreign Minister Sergei Lavrov.

Speaking to reporters at the daily briefing on Friday, White House press secretary Jen Psaki said the US, "in alignment with the decision by our European allies", will sanction Putin, Lavrov and "other members of the Russian national security team".

But while the UK and EU sanctions on Putin and Lavrov will entail an asset freeze, not a travel ban, Ms Psaki tells reporters the US measures will involve a travel ban.

Psaki says more specific details on the sanctions will be released later today.

Doctors Without Borders has paused its work in Ukraine.

The medical charity, also known by its French name Medecins Sans Frontieres (MSF), is often among the last to remain in war zones, but says it has been forced to halt its operations due to the escalating conflict.

This comes after Amnesty International earlier said the invasion of Ukraine had been "marked by indiscriminate attacks on civilian areas and strikes on protected objects such as hospitals".

The US State Department has dismissed Russian President Vladimir Putin's offer of talks with Ukraine as "not real diplomacy".

Speaking to reporters in Washington on Friday, State Department spokesperson Ned Price said that said diplomacy cannot take place "at the barrel of a gun".

For diplomacy to take place, Russian military action in Ukraine must stop and Russian forces must be withdrawn, he said.

So far, Price added, the US had seen no indication that Putin was willing to let diplomacy succeed.

Earlier on Friday, the Kremlin said that Putin was "ready" for high-level talks with a Ukrainian delegation in Belarus about the country adopting "neutrality" and "demilitarising".

As we've been reporting in the past hour, fresh explosions have been heard in the Ukrainian capital.

Footage is beginning to emerge on social media and we are working to verify it.

Below is a compilation of some footage from earlier today, including attacks from the air in the early hours.

Michael Race
BBC Business reporter

Image source, Getty Images

Russia has announced it is limiting access to Facebook, accusing it of "censoring" Russian media.

State communications regulator Roskomnadzor said Facebook had ignored its demands to lift restrictions on four Russian media outlets on its platform - RIA news agency, the defence ministry's Zvezda TV, and websites gazeta.ru and lenta.ru.

Nick Clegg, the president of global affairs at Meta, which owns Facebook, said the social media company refused a request from Russian authorities to stop fact checking the four media organisations.

Moscow has been trying to exert tighter control over the internet and big tech for several years.

It is not yet clear what Russia's restrictions on Facebook will involve. Moscow has previously slowed down the speed of Twitter.