Damien McGuinness
BBC News, Berlin

Berlin won't be imposing an instant embargo on Russian energy, despite the atrocities in Ukraine, says German economy minister Robert Habeck.

But he says the EU's largest economy is working towards cutting off Russian energy.

“We are working towards an embargo, with measures that every day are hurting Putin. We are on a good course and this week we will make more progress on that course”, he says.

“We are working on independence from Russian gas, coal and oil.”

Habeck says before Russia’s invasion of Ukraine, 35% of Germany’s oil came from Russia, now it’s more like 25%. In previous statements he has said since the invasion German dependence on Russian gas has gone from 55% to 40%.

Because of the civilian killings in Bucha and elsewhere in Ukraine new sanctions against Russia would be decided this week, he said.

Image source, EPA/ANDY RAIN

UK foreign secretary Liz Truss will visit Poland today to call for tougher action against Russian aggression and support Ukraine in peace talks, her office has said.

"Putin is yet to show he is serious about diplomacy", she says.

"A tough approach from the UK and our allies is vital to strengthen Ukraine's hand in negotiations."

The foreign secretary will meet her Ukrainian and Polish counterparts Dmytro Kuleba and Zbigniew Rau in Warsaw.

Truss is to push for more action from allies against Moscow, and announced £10 million of support for organisations working with survivors of sexual violence in Ukraine.

"We will do more to ramp up the pressure on Russia and we will keep pushing others to do more", she says.

The foreign secretary is also due to visit aid organisations supporting Ukrainian refugees before travelling to Brussels for G7 and Nato talks later this week.

Ione Wells
Westminster Correspondent, BBC News

Attacks on Ukrainian civilians in Bucha and Irpin have sent shockwaves through Westminster.

The prime minister called the attacks "despicable" and said they were "yet more evidence that Putin and his army are committing war crimes in Ukraine."

Western leaders are expected to increase sanctions on Russia this week - and have joined in condemnation of reports Ukrainian civilians had been shot dead with their hands tied behind their backs.

The BBC has been told the UK government is expected to announce new sanctions on Russia this week. This week, Polish President Duda and German Chancellor Scholz are visiting Boris Johnson.

No 10 has indicated that the UK government is keen to push EU nations, including Germany, to toughen their stance on Russia's access to the Swift international payment system and use of Russian energy.

Ukraine has called for a full embargo on Russian oil, gas and coal.

Warning: There is an image that might distress some readers in the post below this one

The BBC's Yogita Limaye is on the ground reporting on new evidence of atrocities emerging in areas around Kyiv, the Ukrainian capital, after Russian forces pulled out.

She took the photo below of a shallow grave in the village of Motyzhyn, where four people allegedly shot dead by Russian forces were left. We have blurred parts of the picture.

Three of the bodies have been identified as members of one family, including the head of the village, Olha Sukhenko. The fourth body has not been identified.

Yogita is on her way to Bucha - a town where the discovery of many dead civilians has shocked the world, and seen Russia accused of war crimes.

The Kremlin has this morning repeated denials that Russian forces were responsible for killing civilians near Kyiv.

Warning - there is a distressing image immediately below

Image source, REUTERS/Zohra Bensemra

The discovery of civilians' bodies in Bucha and Irpin, some with hands tied behind their backs, should be classified as genocide, Polish Prime Minister Mateusz Morawiecki has said.

Ukrainian authorities discovered the bodies of about 300 people in several towns following the Russian withdrawal, he says.

Morawiecki describes Russia’s invasion of Ukraine as “pure evil” and says Russian President Vladimir Putin will only be stopped by imposing tougher sanctions.

Poland supports the establishment of an international commission to investigate Russian crimes committed in Ukraine.

Morawiecki called on EU countries to confiscate the assets of Russian oligarchs and says Germany’s dependency on Russian energy over the years had helped strengthen Russia.

He also questioned whether French President Emmanuel Macron’s negotiations with Putin had achieved anything.

When asked about Hungary’s stance on Russia, Morawiecki says Viktor Orban’s fourth electoral victory should be respected and that Budapest supports sanctions.

“It’s Germany that is the main roadblock on sanctions."

Yogita Limaye
BBC News correspondent

While travelling to Bucha near Kyiv, in the village of Motyzhyn, we walked past destroyed homes into the woods nearby.

We were taken to see a shallow grave - four bodies were visible. Ukrainian officials told us there could be more.

The bodies have been identified as that of the head of the village Olga Sohnenko, her husband and her son. The fourth hasn't been identified yet.

It’s unclear when they were killed. But this is more evidence that civilians were killed indiscriminately in areas the Russians had taken over.

Over the weekend, BBC journalists were on the ground uncovering the devastation left by Russian troops pulling back from areas near Ukraine's capital, Kyiv.

On Friday, Jeremy Bowen wrote about the grim aftermath of Russia's short-lived occupation of roads between the villages of Mria and Myla, west of the capital.

He counted 13 bodies on one short stretch of road - including two that have been confirmed as Ukrainian civilians killed by Russian forces.

Image source, Jeremy Bowen

On Saturday, Jeremy reported from a line of destroyed Russian tanks on a suburban avenue in Bucha - describing it as a "graveyard for Russia's hopes of encircling and entering Kyiv".

Image source, BBC/LEE DURANT

His report from Bucha told of at least 20 bodies strewn on the street, found by Ukranian forces after the Russians pulled back. Some had their hands tied behind their backs.

Jeremy has also interviewed a woman from the outskirts of Kyiv, whose only son has been shot dead by Russian soldiers.

Here's his full report:

On Sunday, Orla Guerin reported from the battle-scarred town of Irpin, which lies 13 miles (21km) down the road from Kyiv - a crucial point to block the Russian advance.

Orla entered the city centre under armed escort and wrote of streets strewn with rubble and downed power lines - and devoid of life.

She saw extensive damage in residential areas, including a high-rise block where a shell had punched a hole right through a corner apartment, cars with bullet-riddled windscreens and charred houses where the roofs had been ripped off. Some of the dead still lie beneath the rubble.

Earlier we reported that Ukraine's President Volodymyr Zelensky delivered a powerful pre-taped message to the Grammy Awards last night.

In it he urged musicians to "fill the silence" left by Russian bombs "with your music".

The video message was played ahead of a performance by John Legend of a new song, called Free.

The US star was joined on-stage by Ukrainian musicians Mika Newton and Suzanna Iglidan, while a poem was read by their compatriot Lyuba Yakimchuk, who recently fled the country.

Image source, EPA

As we've been reporting, there have been calls for new, tougher sanctions on Russia over the apparent killings of large numbers of civilians in the town of Bucha, near Kyiv.

Ukraine has accused Russian troops of a “deliberate massacre” after the bodies of at least 20 people wearing civilian clothes were found on streets in the city.

Hundreds of corpses are said to have been found in towns outside Kyiv following the withdrawal of Russian troops from the area, according to Ukrainian officials. Russia denies any killings.

Here's the latest reaction:

• French President Emmanuel Macron has called for further sanctions targeting Russia's coal and oil exports – telling French media there were “clear indications of war crimes"
• Germany’s defence minister Christine Lambrecht says the European Union must now discuss banning the import of Russian gas - something leaders have been reluctant to do so far despite Ukrainian urging because of the effect it would have on European consumers
• US Secretary of State Antony Blinken has described images of dead bodies as a “punch in the gut”
• British Prime Minister Boris Johnson condemned what he called “despicable attacks”. Reports suggest the UK could announce new sanctions this week
• Meanwhile EU Council president Charles Michel said further EU sanctions and support were "on their way"

We've just found out a bit more about French President Emmanuel Macron's calls for further sanctions against Russia.

Targeting the oil and coal industries would be "particularly" painful for Russia, he says according to AFP.

France would co-ordinate such steps with its EU partners, "especially Germany", in the coming days, Macron says.

He also suggests the EU could impose further sanctions against Russian individuals.

It's notable that Macron didn't mention targeting Russian gas, which accounts for about 40% of the EU's natural gas imports.

Image source, .

Image source, EPA/ZURAB KURTSIKIDZE

The Georgian Foreign Ministry has strongly condemned the killings of civilians in the Ukrainian town of Bucha, near Kyiv.

The ministry tweeted: "We are devastated by the scenes of brutal atrocities. All those involved in these war crimes must bear responsibility!"

President Salome Zourabichvili said the "Bucha massacre" was a "crime against humanity".

The Georgian government has been under fire from the opposition for its lukewarm support for Ukraine.

The government has repeatedly voiced support for Ukraine but refused to join sanctions against Russia.

Ukrainian President Volodymyr Zelenskyy recalled Ukraine’s ambassadors to Georgia last week, saying: “with all due respect, if there won’t be weapons, won’t be sanctions, won’t be restrictions for Russian business, then please look for other work”.

Adam Easton
Warsaw Correspondent

Some 2,481,000 people have fled Ukraine to Poland since the war began, the Polish Border Guard says.

However, numbers crossing the border have fallen significantly in recent weeks.

On Sunday 22,300 crossed, down 6% from Saturday, the agency wrote on Twitter, and well below the record of 142,300 set on 6 March.

The average daily number of people crossing the border into Poland before the war started was 16,800.

There are also increasing numbers going to Ukraine.

Since the war began, 457,000 people have entered Ukraine via Poland, the agency said.

On Sunday alone, 15,000 people crossed into Ukraine from Poland, down from 21,000 on Saturday.

Some of the people fleeing Ukraine have already left Poland. Warsaw University migration research Prof Maciej Duszczyk estimates about 1.3 to 1.4 million of the refugees remain.

Image source, EPA/Mohammed Badra

More sanctions against Russia are needed after reports of Russian forces killing civilians in the town Bucha, near Kyiv, French President Emmanuel Macron has said.

Ukraine has accused Russia of a "deliberate massacre" in Bucha, after reporters found at least 20 bodies strewn in the streets, but Russia has called these claims war "propaganda".

Macron told France Inter radio that there were "very clear clues" indicating that Russian forces were responsible for warcrimes in Ukraine.

Similar massacres to the one reported in the town of Bucha, outside Kyiv, could be "widespread" in areas held by Russian forces, Jack Watling from UK defence and security think tank Rusi tells BBC Radio 4's Today programme.

Ukraine has accused Russia of a "deliberate massacre" in Bucha after reporters found at least 20 bodies strewn in the streets.

Russia calls these claims war "propaganda".

"This isn't a one-off atrocity. This is very much how the Russians conduct anti-partisan warfare", Jack says.

"I think in those areas where the Russians have seized territory, we are going to discover a significant number of acts like this."

"The intent of those atrocities will be the same, which is to retaliate against the population for the audacity to resist. I think this is going to be very widespread."

"They did the same thing in Afghanistan. They did the same thing in Chechnya and in the Second World War. This is a doctrine of anti-partisan warfare, which is about collective punishment."

Image source, .

As Ukrainian forces re-entered areas close to the capital Kyiv after the Russians retreated, they reported finding hundreds of bodies and mass graves in the town of Bucha.

It was there and in the surrounding areas that the BBC filmed bodies of civilians in the streets - some with their hands and feet bound - who had been shot.

The BBC's Jeremy Bowen met a bereaved mother on the outskirts of Kyiv, who had to bury her own son after he was killed by Russian soldiers.

Hungary's nationalist Prime Minister Viktor Orban has won a fourth term by a landslide in the country's general elections.

In his victory speech, Orban criticised Ukraine's President Volodymyr Zelensky and Brussels bureaucrats, calling them "opponents".

Hungary shares a border with Ukraine and has taken in more than half a million refugees so far.

Orban insists that by helping the people, but refusing to supply weapons to Ukraine, he's keeping Hungary out of the war.

Zelensky has repeatedly criticised Orban's policies.

If you're just joining us now, good morning. Here's the latest we have coming out of Ukraine:

• Ukrainian President Volodymyr Zelensky has condemned Russia's actions in Ukraine, saying they constitute "genocide"
• He said the people of Ukraine did not want to be subdued by Russia and were being destroyed and exterminated as a result
• Ukraine's military has accused Russia of starting a covert mobilisation of reservists. Russia's Vladimir Putin had earlier said he would not send reservist troops to fight in Ukraine
• The UK's Ministry of Defence says Russian forces are continuing to "consolidate and reorganise" as they refocus their offensive in Ukraine's Donbas region
• It claimed that Russian troops were being moved into the area, which cannot be independently verified by the BBC

With that, this is Yvette Tan signing out from Singapore and handing over to my colleagues Chris Clayton and Jack Burgess in London.

Hugo Bachega
BBC News, Lviv

Nadia Denysenko and her three children escaped Mariupol after three weeks under constant siege by Russian forces.

For days, alone together in their frigid apartment where the windows had been blown out by shelling, they had very little to eat, and almost nothing to drink.

The first thing they did was buy bread, sausage and water.

"We're safe and we can buy food," she told the BBC.

"But my son still hides food: bread, candies. He hides it in different parts of the flat where we're staying."

She asked him "What for?"

"He said, 'So I'll have something to eat tomorrow.'"

Read more on Nadia's harrowing escape

The UK's Ministry of Defence has tweeted an update, external this morning with their latest intelligence on Russia's movements in Ukraine. Here's what they said:

• Russian forces are continuing to consolidate and reorganise as they refocus their offensive into the Donbas region in the east of Ukraine
• Russian troops, including mercenaries from the Russian state-linked Wagner private military company, are being moved into the area

These claims cannot be independently verified by the BBC.

Image source, .

Image source, Reuters

Russia has started a covert mobilisation of reservists, claims Ukraine's military in its latest news bulletin at 04:00 GMT on 4 April.

"During the selection of candidates, preference is given to those who already have combat experience," the report says, identifying five Russian regions and the main target areas.

It adds that Moscow is hoping to mobilise about 60,000 extra troops.

Russia has not commented on the Ukrainian report, the accuracy of which has not been independently verified.

However, Russian President Vladimir Putin had earlier last month said he would not send conscripts or reservists to fight in Ukraine.