It’s 100 days since Russia invaded Ukraine. Countless lives have been shattered and upended.

Ukrainecast hears the stories that define the conflict, and asks what Ukraine will be like in another 100 days' time.

The podcast features Victoria Derbyshire, Gabriel Gatehouse, Fergal Keane, Jeremy Bowen, Frank Gardner, and Vitaliy Shevchenko, as well as testimonies from Ukrainians and Russians.

Click below or here for the full episode.

Image source, EPA

If you're just joining us, here's a look at some of the main news stories on the 100th day since Russia invaded Ukraine.

• President Volodymyr Zelensky says Ukraine has "done what seemed impossible" by holding off Russia for 100 days. He says Russia has been unable to achieve "any strategic goals"
• However, the Kremlin has claimed Russian forces have made gains and will not give up until its objectives are achieved
• Fighting has continued in the eastern Donbas region, including in the city of Severodonetsk which is now largely controlled by Russian forces, while Kharkiv has come under artillery bombardment.
• Western countries need to "prepare for the long haul", Nato chief Jens Stoltenberg has said
• Russian President Vladimir Putin has been told to consider the impact of food shortages caused by the invasion in a meeting with the head of the African Union

Two Reuters journalists have been wounded and their driver killed in eastern Ukraine.

Photographer Alexander Ermochenko and cameraman Pavel Klimov "sustained minor injuries when they came under fire while en route to Severodonetsk", the news agency said in a statement.

"They were travelling in a vehicle provided by the Russian-backed separatists and driven by an individual assigned by the separatists. The driver of the vehicle was killed," it added.

Reuters said it had not been immediately able to establish the identity of the driver but said it "extends its deepest sympathies to the family of the driver for their loss".

The journalists were taken to hospital in Rubizhne, where Ermochenko was treated for a small shrapnel wound and Klimov for an arm fracture.

It comes four days after French journalist Frédéric Leclerc-Imhoff was killed near the battle-hit eastern city of Severodonetsk.

The 32-year-old was covering an evacuation operation for broadcaster BFMTV when he died.

In March, US journalist Brent Renaud was the first foreign journalist to be killed covering the conflict.

Journalist Vira Hyrych working for US government-funded Radio Liberty in Ukraine was killed when a Russian rocket strike her apartment building in Kyiv in April.

Image source, Getty Images

As we've been reporting, today is 100 days since Russian President Vladimir Putin invaded Ukraine.

To mark the grim milestone, leaders and officials from Europe have shared messages of support. Some of the highlights are listed below - scroll further down our live page to see what Ukrainian President Volodymyr Zelensky and the Kremlin had to say.

Image source, Reuters

East Africa is facing the worst food security situation in recent history amid shortages due to the war in Ukraine, the World Food Programme's regional director says.

Mike Dunford tells BBC Radio 4's PM that there are now 82 million people "acutely hungry", up from 50 million this time last year.

"The war in Ukraine and Russia is exacerbating what already was a disastrous situation," he says.

He adds food should be considered outside of packages of sanctions connected to the conflict.

"We need to ensure that food from Ukraine, from Russia are available. We need to see fertilizer moving uninhibited by any sanctions regime," he says, adding the conflict is having a "hugely negative impact across the globe".

"The most vulnerable populations, the most vulnerable countries are being drawn into a conflict, or the effects of a conflict, which they have no role to play."

Image source, Ukraine Military/Reuters

To mark 100 days since the Russian invasion of Ukraine, UN aid agencies have released figures showing the impact it has had.

World Food Programme figures show 1.7 billion people worldwide are facing increased poverty because of the grain blockade and rising food prices, while the number facing "acute hunger" is set to rise by 47 million.

Amin Awad, the UN's crisis coordinator for Ukraine, says at least 15.7 million people in the country are in need of urgent humanitarian assistance and protection.

Other statistics include:

• Nearly five million children have had their education suspended
• Nearly 14 million people have been forced to flee - about a third of Ukraine's population
• UN Human Rights reports 9,197 civilian casualties - 4,183 killed and 5,014 injured - but these only include those which can be confirmed under a strict verification process
• There have been 269 attacks on healthcare facilities - killing at least 76 people, according to the World Health Organization

Image source, EPA

On the 100th day since the invasion Ukrainian President Volodymyr Zelensky says Ukraine has "done what seemed impossible" and stopped "the second army of the world".

Earlier we brought you a video in which he said "victory would be ours".

Now in a post on Telegram he says the country has "liberated part of our territories and continue to give a decent rebuff to the occupiers".

He says Russia has been "unable to achieve any strategic goal" and has instead tried to "shift its powerlessness to civilian infrastructure and people".

"Thank you to everyone, thanks to whom Ukraine has survived and continues to defend its hundredth day. We will win," he says.

Paul Kirby
Digital Europe editor

Image source, Getty Images

Kaja Kallas has been one of Ukraine's most vocal friends since Russian troops invaded 100 days ago.

Now, the Estonian PM has ditched her junior coalition partner, accusing the Centre party of actively working against the country's values.

While from the outside this crisis looks like a domestic political row over child benefits, Kallas says in reality it's about Estonia's independence and the threat from neighbouring Russia.

She told reporters today she'd believed "Russia's genocide in Ukraine" had opened the eyes of all of Estonia's political parties to the threats they were facing from Moscow.

But it turned out that two parties, including her junior coalition partner, had been unable to stand up for Estonia's independence and values, she said.

With a key Nato summit in Madrid only weeks away she also pointed out that none of her coalition partner's seven ministers had Nato security clearance. The Centre party has rejected her argument - saying some of those ministers were in the process of getting clearance.

Kallas says she'll now try to form a new coalition with two smaller parties. Estonia's President Alar Karis says Europe is facing its worst security crisis in years and the country urgently needs a working government.

Listen here to PM Kaja Kallas's essay on Putin and the war in Ukraine.

Orla Guerin
Reporting from Donbas

"Hell" – that’s the summary from one Ukrainian commander on a section of frontline in the east. His verdict is shared by many of those fighting here.

"They haven't seen anything as bad for a long time, if ever," said one Ukrainian source.

When I asked a fighter at an artillery position near the town of Bakhmut today how many friends he had lost his response also came in a single word.

"Many," he said bleakly.

The Russians are only 3 km (2 miles) from his location, on two sides.

Ukraine is not revealing the toll of its military losses, but we know the numbers are rising by up to 100 a day.

Ukrainian forces are still waiting on longer range advanced rocket systems that might turn the tide – though America has promised they are on the way.

In the meantime, Russia's offensive is grinding forward. In towns near the frontlines, the sound of shelling echoes in empty streets. Business are boarded up. Homes are abandoned. This is Moscow's "liberation" of Donbas.

There's been war in the east since 2014 when Russian-backed separatists seized parts of Ukraine's old industrial heartland. Now Moscow wants the rest of the Donbas.

Many of the Ukrainian troops here are seasoned veterans of this long battle. They are now in the fight of their lives.

Image source, Getty Images

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Russian strikes continue to hit Kharkiv in north-eastern Ukraine.

The governor Oleh Synyehubov reported two civilians wounded by shelling on Telegram - a claim the BBC has not independently verified.

In the first months of the war, the city - Ukraine's second-largest - came under intense bombardment with tower blocks flattened

But in April and May, Ukrainian forces pushed their invaders back. However, the city remains within range of Russian artillery - and the bombardment continues.

Image source, Reuters

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Olesya Gerasimenko and Kateryna Khinkulova
BBC World Service

Image source, EPA

Some Russian troops are refusing to return to fight in Ukraine because of their experiences on the front line, according to Russian human rights lawyers and activists.

The BBC has been speaking to one such soldier.

"I don't want to go [back to Ukraine] to kill and be killed," says Sergey - not his real name - who spent five weeks fighting in Ukraine earlier this year.

He is now home in Russia, having taken legal advice to avoid being sent back to the front line. Sergey is just one of hundreds of Russian soldiers understood to be seeking such advice.

Sergey says he is traumatised by his experience in Ukraine.

"I had thought that we were the Russian army, the most super-duper in the world," says the young man bitterly.

Instead they were expected to operate without even basic equipment, such as night vision devices, he says.

"We were like blind kittens. I'm shocked by our army. It wouldn't cost much to equip us. Why wasn't it done?"

Read more of Sergey's story here.

Image source, Getty Images

Europe's largest nuclear power plant in Russian-occupied Ukraine is facing a "critical situation" due to shortage of spare parts, Ukraine's military intelligence agency says.

The plant in the Zaporizhzhia region was occupied by Russian troops shortly after the invasion, but is still operated by Ukrainian technicians.

"A critical situation has developed at the... plant in terms of ensuring stable and safe operations. There are practically no spare parts and expendable materials left," the Defence Intelligence of the Ministry of Defence said.

Ukrainian staff have been forced to hand over personal belongings including their phones, the ministry said in a statement.

The BBC has not been able to verify these claims.

Image source, Reuters

The EU has sanctioned Alina Kabaeva - a former Russian MP and reported girlfriend of President Putin - in a new tranche of measures.

The Russian president has explicitly denied having a relationship with the former Olympic gymnast.

The EU says Kabaeva is a chairwoman for a media group that "owns large stakes" in organisations that "reproduce the Russian Government propaganda."

• Who is Alina Kabaeva?

"She is a former Russian gymnast and a former member of the State Duma. She is closely associated with President Vladimir Putin.

"She is therefore responsible for supporting actions and policies which undermine the territorial integrity, sovereignty and independence of Ukraine, as well as stability and security in Ukraine,” the EU statement says.

Kabaeva has already been sanctioned by the UK and Canada.

Image source, AFP

The EU says this latest set of listings is focused on sanctions on the Russian army and defence ministry.

Colonel-General Mikhail Mizintsev, sometimes referred to as the Butcher of Mariupol is listed, as is Colonel Azatbek Omurbekov, known as the Butcher of Bucha. Both men had already been targeted by UK sanctions.

Business and media figures are also included – as well as family members of Dmitry Peskov, Putin’s press secretary.

All those listed will be subject to travel bans and asset freezes, says the EU.

As the Russian assault on the eastern Donbas region continues, Ukraine claims to have repelled five attacks in Donetsk and Luhansk.

Elsewhere, Ukrainians are trying to restore some sort of normality in areas where Russian troops have withdrawn, leaving devastation in their wake.

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Joe Inwood
Reporting from Kyiv

In news, we always look for what is known as a "peg". One Hundred Days… has become one of those hooks on which to hang a story.

Today, 3 June 2022, is being seen as such a moment - a way to mark Russia’s invasion of Ukraine.

The funny thing is, people here in Kyiv don't seem to be thinking the same way.

That's not because they aren’t interested; people talk of little else. Life here is dominated by the most significant conflict in Europe for more than 75 years.

It's more that they don’t see this as a war that is 100 days old. For Ukrainians, this really began with the annexation of Crimea back in 2014.

Since that date, when Russia forcibly occupied the Black Sea peninsula, before starting a brutal separatist uprising in the eastern Donbas region, Ukrainians feel they have been at war.

There were international sanctions and denunciations at the time, but nothing approaching the scale triggered by recent events.

The real question being asked here is not "what does 100 days mean"… but: "Why did it take the rest of the world so long to realise what was really going on?"

A French volunteer fighter in Ukraine has been killed in combat, the French foreign ministry has announced.

It follows reports earlier today that the man died in artillery fire in the Kharkiv region.

"We are aware of the sad news that a French citizen has been fatally wounded during combat in Ukraine," the ministry said.

"We remind everyone that the whole of Ukraine is a war zone. In this regard, travel to Ukraine is formally advised against, for whatever reason."

Earlier this week, a French journalist was killed near the battle-hit city of Severodonetsk in the east.

Hotel group Marriott International is the latest company to announce it is suspending all its operations in Russia.

In a statement, external it says the new US, UK and EU sanctions make it impossible to continue to operate its franchise hotels in Russia - having previously closed its Moscow office and paused the opening of new hotels in the country.

"As we take steps to suspend hotel operations in Russia, we remain focused on taking care of our Russia-based associates," it says.

James Landale
Diplomatic correspondent

Image source, AFP via Getty Images

In just 100 days, Russia's war in Ukraine has made a huge dent in the long arc of history.

The first mass armoured invasion across a European border since World War Two. Tens of thousands dead, civilians and combatants alike. Unspeakable war crimes committed. Cities reduced to rubble.

A massive migration crisis, with some 14 million people displaced. A revival of something approaching Western unity. A phenomenal multinational arms transfer, possibly the biggest ever.

A modern warship sunk. Nato forces redeployed along its eastern flank. Sweden and Finland preparing to join the Western military alliance. Unprecedented sanctions on a single nation.

A global economic and energy crisis - plus a grain blockade - leading to threat of famine and political instability. A world reshaped by a single, ill-informed, autocratic leader.

And the Russo-Ukrainian war is not over, not by a long chalk.

Image source, Reuters

Belarus leader Alexander Lukashenko says he's ready to discuss the possible transit of Ukraine's grain via his country, local newspaper Belarus Today reports.

Ukrainian farmers have about 20 million tonnes of grain they cannot get to international markets, and a new harvest is about to begin.

Ukraine's inability to export its grain has led to soaring global food prices. It has also raised the prospect of famines in the countries which depend on its exports.

"Now everyone is looking for logistics... Okay, we can talk. We do not mind: bring it through Belarus, but there must be compromises," Lukashenko reportedly said.

Read more: How can Ukraine export its harvest to the world?

We've been reflecting from Russia and Ukraine on the war's 100th day - but some European leaders have also marked the milestone.

"100 days ago Russia unleashed its unjustifiable war on Ukraine. The bravery of Ukrainians commands our respect and our admiration," Ursula von der Leyen, president of the EU Commission tweeted.

"The EU is united and will do all it can to bring an end to this disastrous war," European Council President Charles Michel wrote.

Alar Karis, president of Estonia, tweeted: "100 days of death, rape, destruction & misery. Each day of war in Ukraine is one day too much. It would take just hours for Russia to drop the weapons & stop this horror."

Latvian President Egils Levits said: "We must redouble our efforts to help Ukraine resist and win this war".